A

• Abderhalden ninhydrin reaction — Emil Abderhalden
• Abney effect, Abney's law of additivity — William de Wiveleslie Abney
• Abrikosov lattice — Alexei Alexeyevich Abrikosov
• Aharonov-Bohm effect — Yakir Aharonov and David Bohm
• Albert effect — ? Albert
• Alfvén number (a.k.a. Kármán number, magnetic Mach number) — Hannes Olof Gösta Alfvén
• Alfvén speed, wave — Hannes Olof Gösta Alfvén
• Allais effect — Maurice Allais
• Allee effect — Warder Clyde Allee
• Allinger's force field — Norman Allinger
• Ampère's law — André-Marie Ampère
• Anderson-Higgs mechanism (a.k.a. Higgs mechanism) — Peter Higgs and Philip Warren Anderson
• Anderson-Darling test — Theodore W. Anderson, Jr. and Donald A. Darling
• Andreev reflection — Alexander F. Andreev
• Andy's rule — André R. Wyss
• Apgar score — Virginia Apgar
• Arago phenomenon (a.k.a. Rotatory magnetism), spot — Dominique François Jean Arago
• Arbuzov-Michaelis reaction — Aleksandr Erminingeldovich Arbuzov and August Karl Arnold Michaelis
• Archimedean spiral, Archimedes number — Archimedes
• Argand diagram — Jean Robert Argand
• Argunov-Cassegrain telescope — P. P. Argunov and Laurent Cassegrain
• Aristotle's lantern — Aristotle
• Armstrong oscillator — Edwin Armstrong
• Arndt-Eistert synthesis — Fritz Arndt and Bernd Eistert
• Arndt-Schulz law/principle/rule — Rudolf Arndt and Hugo Paul Friedrich Schulz
• Arrhenius equation, number — Svante August Arrhenius
• Ashkin-Teller model (a.k.a. Potts model) — Julius Ashkin and Edward Teller
• Asinger reaction — Friedrich Asinger
• Auger effect, electron — Pierre Victor Auger
• Autler-Townes effect (a.k.a. Dynamical Stark splitting) — Stanley H. Autler and Charles H. Townes
• Auwers synthesis — Karl von Auwers
• Avogadro's law, number — Count Lorenzo Romano Amedeo Carlo Avogadro di Quaregna e Cerreto

B

• Baeyer-Drewson indigo synthesis — Johann Friedrich Wilhelm Adolf von Baeyer and Viggo Drewsen
• Baeyer-Villiger oxidation and Baeyer-Villiger rearrangement — Johann Friedrich Wilhelm Adolf von Baeyer and Victor Villiger
• Bagnold number — Ralph Alger Bagnold
• Baily's beads — Francis Baily
• Baker-Nathan effect — John William Baker and Wilfred S. Nathan
• Bakerian mimicry — Herbert G. Baker
• Balmer line, series — Johann Jakob Balmer
• Bamberger rearrangement — Eugen Bamberger
• Bamford-Stevens reaction — William Randall Bamford and Thomas Stevens Stevens
• Barbier-Wieland reaction — François Antoine Phillipe Barbier and Heinrich Otto Wieland
• Bardeen vacuum — James Maxwell Bardeen
• Barkhausen effect — Heinrich Barkhausen
• Barnett effect — Samuel Jackson Barnett
• Barnett-Monstein effect – Samuel Jackson Barnett and Christian Monstein
• Barnum effect (a.k.a. Forer effect) — Phineas Taylor Barnum (and Bertram R. Forer)
• Barro-Ricardo equivalence — Robert Barro and David Ricardo
• Bartlett-Condon-Schneider reaction — Paul Doughty Bartlett, Francis Edward Condon, and Abraham Schneider
• Barton reaction — Sir Derek Harold Richard Barton
• Barton-McCombie reaction — Sir Derek Harold Richard Barton and Stuart W. McCombie
• Baskerville effect — the fictional Charles Baskerville of the novel The Hound of the Baskervilles
• Batesian mimicry — Henry Walter Bates
• Båth's law — Markus Båth
• Bayes' theorem — Rev. Thomas Bayes
• Baylis-Hillman reaction — Anthony B. Baylis and Melville E. D. Hillman
• Bayliss effect — William M. Bayliss
• BCS superconduction theory — John Bardeen, Leon Cooper, and Robert Schrieffer
• Beaufort scale (Beaufort wind force scale) — Sir Francis Beaufort
• Beckmann rearrangement — Ernst Otto Beckmann
• Becquerel effect — Henri Becquerel
• Beer's law (a.k.a. Beer-Lambert law or Beer-Lambert-Bouguer law) — August Beer (and Johann Heinrich Lambert and Pierre Bouguer)
• Beilstein's test — Friedrich Konrad Beilstein
• Bejan number — Adrian Bejan
• Bekenstein bound — Jacob Bekenstein
• Bell's inequality — John Stewart Bell
• Bell number — Eric Temple Bell
• Belousov-Zhabotinskii reaction — Boris Pavlovich Belousov and Anatol Markovich Zhabotinskii
• Bénard cell — Henri Bénard
• Bénard-Marangoni cell/convection (a.k.a. Marangoni convection) — Henri Bénard and Carlo Marangoni
• Benedicks effect — Manson Benedicks
• Benedict's test — Stanley Rossiter Benedict
• Benford's law — Frank Albert Benford, Jr.
• Benioff zone — see Wadati-Benioff zone, below
• Bennett pinch — Willard Harrison Bennett
• Benkeser reduction — Robert Anthony Benkeser
• Berezinsky–Kosterlitz–Thouless transition — Veniamin L. Berezinsky, John M. Kosterlitz, and David J. Thouless
• Bergman cyclization — Robert George Bergman
• Bergmann's rule — Christian Bergmann
• Bergmann-Zervas carbobenzoxy method — Max Bergmann and Leonidas Zervas
• Bernoulli effect, Bernoulli's equation, principle — Daniel Bernoulli
• Berry's phase — Michael V. Berry
• Betz limit — Albert Betz
• Bezold-Brücke effect (a.k.a. von Bezold spreading effect) — Johann Friedrich Wilhelm von Bezold and Ernst Wilhelm von Brücke
• Biefeld-Brown effect — Paul Alfred Biefeld and Thomas Townsend Brown
• Biginelli reaction — Pietro Biginelli
• Bingham number — Eugene C. Bingham
• Biot number — Jean-Baptiste Biot
• Biot-Savart law — Jean-Baptiste Biot and Félix Savart
• Birch reduction — Arthur John Birch
• Birge-Hopfield bands — see Lyman-Birge-Hopfield bands, below
• Birkeland currents — Kristian Birkeland
• Birman-Williams theorem — Joan Sylvia Lyttle Birman and Robert F. Williams
• Bischler-Napieralski synthesis — August Bischler and Bernard Napieralski
• Black's law (a. k. a. Black's equation) for electromigration — James R. Black (d. 2004) of Motorola
• Blake number — Frank C. Blake (1892-1926) US chemist
• Blazhko effect — Sergei Blazhko
• Bloch wave — Felix Bloch
• Bodenstein number — probably Max Bodenstein (1871 — 1942)
• Bohm sheath criterion — David Bohm
• Bohr effect — Christian Bohr
• Bohr magneton, model, radius — Neils Bohr
• Boltzmann constant — Ludwig Boltzmann
• Boltzmann number (a.k.a. Thring number) — Ludwig Boltzmann (or ? Thring)
• Bond number — ? Bond
• Borch reduction — Richard Frederic Borch
• Borel algebra, measure, set, space, summation, Borel's lemma, paradox — Félix Édouard Justin Émile Borel
• Borel-Cantelli lemma — Félix Édouard Justin Émile Borel and Francesco Paolo Cantelli
• Borel-Carathéodory theorem — Félix Édouard Justin Émile Borel and Constantin Carathéodory
• Bormuth index — John R. Bormuth
• Born-Haber cycle — Max Born and Fritz Haber
• Born-Oppenheimer approximation — Max Born and Robert Oppenheimer
• Borodin-Hunsdiecker reaction — Aleksandr Porphyrevich Borodin, Hienz Hunsdiecker, and Clare Hunsdiecker (née Dieckmann)
• Borrmann effect (a.k.a. Borrmann-Campbell effect) — Gerhard Borrman (and H. N. Campbell)
• Bortle Dark-Sky Scale — John E. Bortle
• Bose-Einstein condensate, effect, statistics — Satyendra Nath Bose and Albert Einstein
• Boson — Satyendra Nath Bose
• Boussinesq number — Joseph Boussinesq
• Bouveault-Blanc reaction — Louis Bouveault and Gustave Louis Blanc
• Bouveault-Locquin synthesis — Louis Bouveault and René Locquin
• Boyle's law (a.k.a. Boyle-Mariotte law) — Robert Boyle (and Edme Mariotte)
• Brackett line, series — Frederick Sumner Brackett
• Bragg angle, Bragg's law, Bragg plane — William Henry Bragg and his son William Lawrence Bragg
• Bragg diffraction — William Lawrence Bragg
• Brans-Dicke theory — Carl H. Brans and Robert H. Dicke
• Braun-Blanquet method — Josias Braun-Blanquet
• Bravais lattice — Auguste Bravais
• Bravais-Miller indices (a.k.a. Miller-Bravais indices) — Auguste Bravais and William Hallowes Miller
• Brayton cycle — George B. Brayton
• Bredt's rule - Julius Bredt
• Brewster's angle, law — David Brewster
• Brillouin-Mandel'shtam effect — see Mandel'shtam-Brillouin scattering, below
• Brillouin zone — Léon Brillouin
• Brinkman layer, number — Hendrik C. Brinkman
• Brinkman-Forchheimer equations — Hendrik C. Brinkman and Philipp Forchheimer
• Brook rearrangement — Adrian Gibbs Brook
• Brownian motion — Robert Brown
• Brownell-Katz number — Lloyd E. Brownell and Donald L. Katz
• Bucherer reaction — Hans Theodor Bucherer
• Büchi automata — Julius Richard Büchi
• Buckingham theorem (a.k.a. Vaschy-Buckingham theorem) — Edgar Buckingham (and Aimé Vaschy)
• Bulygen number — ? Bulygen
• Burali-Forti paradox — Cesare Burali-Forti
• Butcher-Oemler effect — Harvey Raymond Butcher and Augustus Oemler, Jr.

C

• Cabannes-Daure effect — Jean Cabannes and Pierre Daure
• Cadiot-Chodkiewicz coupling, reaction — Paul Cadiot and Wladyslav Chodkiewicz
• Callendar Effect — Guy Stewart Callendar
• Callier effect — André Callier
• Callippic cycle — Callippus of Cyzicus
• Calvin cycle (a.k.a. Calvin-Benson cycle) — Melvin Calvin (and Andy Benson)
• Cannizzaro reaction — Stanislao Cannizzaro
• Cardan angles (a.k.a. Tait-Bryan angles) — Gerolamo Cardano
• Carnot cycle, number — Nicolas Léonard Sadi Carnot
• Carpenter effect (a.k.a. Ideomotor effect) — William Benjamin Carpenter
• Cartan–Kähler theorem — Élie Cartan, Erich Kähler
• Casimir effect — Hendrik Casimir
• Catalan's conjecture (a.k.a. Mihăilescu's theorem), Catalan numbers — Eugène Charles Catalan
• Cauchy number (a.k.a. Hooke number) — Augustin-Louis Cauchy
• Cauchy-Kovalevskaya theorem — Augustin-Louis Cauchy, Sofia Kovalevskaya
• Cauer filter — Wilhelm Cauer
• Chandler wobble — Seth Carlo Chandler
• Chandrasekhar effect, limit, number — Subrahmanyan Chandrasekhar
• Chapman rearrangement — Arthur William Chapman
• Chappuis bands (sometimes misspelled "Chappius") — J. Chappuis
• Chebyshev distance, equation, filter, linkage, polynomials — Pafnuty Lvovich Chebyshev
• Chebyshev's inequality (a.k.a. Bienaymé-Chebyshev inequality) — Pafnuty Lvovich Chebyshev (and Irénée-Jules Bienaymé)
• Cherenkov radiation (a.k.a. Cherenkov-Vavilov radiation) — Pavel Alekseyevich Cherenkov (and Sergey Ivanovich Vavilov)
• Chichibabin pyridine amination reaction — Alexei Yevgenievich Chichibabin
• Christiansen cavity, effect, filter — Christian Christiansen
• Christoffel symbol — Elwin Bruno Christoffel
• Christofilos effect — Nicholas Christofilos
• Chugaev elimination/reaction, reagent — Lev Aleksandrovich Chugaev
• Ciamician photodisproportionation, synthesis — Giacomo Luigi Ciamician
• Claisen condensation, rearrangement — Rainer Ludwig Claisen
• Claisen-Ireland rearrangement — Rainer Ludwig Claisen and Robert Ellsworth Ireland
• Claisen-Schmidt reaction — Rainer Ludwig Claisen and J. Gustav Schmidt
• Clapp oscillator — James K. Clapp
• Clarke orbit — Arthur C. Clarke
• Clausius number — Rudolf Julius Emanuel Clausius
• Clayden effect — Arthur W. Clayden
• Clemmensen reduction — Erik Christian Clemmensen
• Clifton effect — Rachel K. Clifton
• Coanda effect — Henri Coanda
• Coase theorem — Ronald Coase
• Coke-Rothkopf index — Ester U. Coke and Ernst Z. Rothkopf
• Colburn-Chilton analogy (a.k.a. Colburn analogy) — Allan Philip Colburn and Thomas H. Chilton
• Coleman-Liau index — Meri Coleman and T. L. Liau
• Coleman-Mandula theorem — Sidney Coleman and Jeffrey Mandula
• Colpitts oscillator — Edwin H. Colpitts
• Compton effect, scattering, wavelength — Arthur Compton
• Coolidge effect — from a joke attributed to John Calvin Coolidge, Jr.
• Cooper pair — Leon Cooper
• Cope elimination, rearrangement — Arthur Clay Cope
• Corey-Fuchs reaction — Elias James Corey and Philip L. Fuchs
• Corey-Kim oxidation — Elias James Corey and Choung Un Kim
• Corey-Winter olefin synthesis — Elias James Corey and Roland Arthur Edwin Winter
• Coriolis effect — Gaspard-Gustave Coriolis
• Cornforth rearrangement — Sir John Warcup Cornforth
• Cotton effect — Aimé Auguste Cotton
• Cotton-Mouton effect — Aimé Auguste Cotton and H. Mouton
• Coulomb constant, law — Charles Augustin de Coulomb
• Coulter counter, principle — Wallace Henry Coulter
• Cowling number — probably Thomas George Cowling
• Coxeter-Dynkin diagram — Harold Scott MacDonald Coxeter and Eugene Borisovich Dynkin
• Crabtree effect — Herbert Grace Crabtree
• Crane-Monstein effect – Oliver Crane and Christian Monstein
• Criegee reaction, rearrangement — Rudolf Criegee
• Curie point — Pierre Curie
• Curry's paradox — Haskell Curry
• Curtin-Hammett principle — David Yarrow Curtin and Louis Plack Hammett
• Curtius rearrangement — Theodor Curtius
• Cuvierian tubules, Cuvier's organ — Georges Cuvier

D

• Dakin reaction, Dakin-West reaction - Henry Drysdale Dakin (and Randolph West)
• Dale-Chall index — Edgar Dale and Jeanne S. Chall
  • Dalton's law (of partial pressures) — John Dalton
  • Danishefsky reaction — Samuel J. Danishefsky
  • Darlington pair — Sidney Darlington
  • Darwin point — Charles Darwin
  • Darzens condensation — Auguste George Darzens
  • de Broglie wavelength — Louis de Broglie
  • de Bruijn sequences — Nicolaas Govert de Bruijn
  • de Haas-Van Alphen effect — Wander Johannes de Haas and P. M. van Alphen
  • de Haas-Shubnikov effect (a.k.a. Shubnikov-De Haas effect) — Wander Johannes de Haas and Lev Vasiljevich Shubnikov
  • Deborah number – the prophetess Deborah (Bible, Judges 5:5)
  • Debye effect, length, model, shielding — Peter Joseph William Debye
  • Debye-Falkenhagen effect — Peter Joseph William Debye and Hans Falkenhagen
  • Richard Dedekind has many topics named after him; see biography article.
  • Delbrück scattering — Max Ludwig Henning Delbrück
  • Delépine reaction — Stéphane Marcel Delépine
  • Dellinger effect (a.k.a. Mögel-Dellinger effect) — John Howard Dellinger (and Hans Mögel)
  • Demjanov rearrangement — Nikolai Jakovlevich Demjanov
  • Dess-Martin oxidation — Daniel Benjamin Dess and James Cullen Martin
  • Destriau effect — Georges Destriau
  • deVries effect — Hessel deVries
  • Dieckmann condensation — Walter Dieckmann
  • Diels-Alder reaction — Otto Paul Hermann Diels and Kurt Alder
  • Diophantine equation — Diophantus of Alexandria
  • Dirac comb, constant, equation, delta function, measure — Paul Dirac
  • Johann Peter Gustav Lejeune Dirichlet has dozens of formulas named after him.
  • Divisia index — François Divisia
  • Doebner-Miller reaction — Oscar Döbner (Doebner) and Wilhelm von Miller
  • Dollo's law — Louis Dollo
  • Donnan effect (a.k.a. Gibbs-Donnan effect) — see Gibbs-Donnan effect, below
  • Doppler effect (a.k.a. Doppler-Fizeau effect), Doppler profile — Christian Doppler (and Hippolyte Fizeau)
  • Dötz reaction — Karl Heinz Dötz
  • Drake equation ((a.k.a. Sagan equation, Green Bank equation) — Frank Drake (or Carl Sagan or Green Bank, West Virginia, home to the National Radio Astronomy Observatory (NRAO))
  • Droste effect — Dutch chocolate maker Droste
  • Drude model — Paul Drude
  • Duff's device — Tom Duff
  • Duffing equation, map — ? Duffing
  • Duhamel's formula, integral, and principle – Jean-Maria-Constant Duhamel
  • Dulong-Petit law — Pierre Louis Dulong and Alexis Thérèse Petit
  • Dunitz angle — Jack David Dunitz
  • Durfee polynomial, square — William H. Durfee

  E

  • Eagle effect — Harry Eagle
  • Early effect — James M. Early
  • Eberhard effect — Gustav Eberhard
  • Eddington limit — Arthur Eddington
  • Edgeworth-Bowley box — Francis Ysidro Edgeworth and Arthur Lyon Bowley
  • Edison effect — Thomas Edison
  • Edman degradation — Pehr Victor Edman
  • Edward-Lemieux effect (a.k.a. Anomeric effect) — John Thomas Edward and Raymond U. Lemieux
  • Eglinton reaction — Geoffrey Eglinton
  • Ehrenfest paradox, time — Paul Ehrenfest
  • Ehrenfest-Tolman effect — Paul Ehrenfest(?) and Richard Chace Tolman
  • Eimer's organ — Gustav Heinrich Theodor Eimer
  • Einstein shift — Albert Einstein
  • Einstein-de Haas effect — Albert Einstein and Wander Johannes de Haas
  • Einstein-Podolsky-Rosen paradox (a.k.a. EPR paradox, Einstein-Podolsky-Rosen-Bohm paradox) — Albert Einstein, Boris Podolsky, Nathan Rosen (and David Bohm)
  • Ekman layer — Walfrid Ekman
  • Elbs reaction — Karl Elbs
  • Elliott-Halberstam conjecture — Peter D. T. A. Elliott and Heini Halberstam
  • Elman network — Jeff Elman
  • Elsasser number - Walter M. Elsasser
  • Emde reaction — Hermann Karl Christian Maximilian Emde
  • Engel curve — Ernst Engel
  • Epimenides paradox — Epimenides of Knossos
  • Erlenmeyer flask, rule, synthesis — Richard August Carl Emil Erlenmeyer
  • Eschenmoser fragmentation — Albert Eschenmoser
  • Eschweiler-Clarke reaction — Wilhelm Eschweiler and Hans Thacher Clarke
  • Eshelby's inclusion — John D. Eshelby
  • Étard reaction — Alexandre Léon Étard
  • Ettinghausen effect — Albert von Ettinghausen
  • Euler this and that — Leonhard Euler
  • Evershed effect — John Evershed

  F

  • Faà di Bruno's formula — Francesco Faà di Bruno
  • Faraday constant, effect, Faraday's law of induction, Faraday's law of electrolysis — Michael Faraday
  • Farnsworth-Hirsch fusor — Philo T. Farnsworth and Robert L. Hirsch
  • Farr-Jenkins-Paterson index — James N. Farr, James J. Jenkins, and Donald G. Paterson
  • Favorskii reaction, rearrangement — Alexei Yevgrafovich Favorskii
  • Fehling reaction — Herman Christian von Fehling
  • Fenton reaction — Henry John Horstman Fenton
  • Fermat's principle — Pierre de Fermat
  • Fermi energy, paradox, surface, Fermion — Enrico Fermi
  • Fermi-Dirac statistics — Enrico Fermi and Paul Dirac
  • Ferrers diagram (a.k.a. Young diagram, Ferrers graph) — Norman Macleod Ferrers
  • Feshbach resonance — Herman Feshbach
  • Feynman diagram — Richard Feynman
  • Feynman-Kac model — Richard Feynman and Mark Kac
  • Finkelstein reaction — Hans Finkelstein
  • Fischer esterification, indole synthesis — Emil Hermann Fischer
  • Fischer-Hafner reaction — Ernst Otto Fischer and Walter Hafner
  • Fischer-Tropsch process — Franz Joseph Emil Fischer and Hans Tropsch
  • Fischer-Hepp rearrangement — Otto Philipp Fischer and Eduard Hepp
  • Fisher distribution — Ronald A. Fisher
  • Fisher equation — Irving Fisher
  • Fitts' law — Paul M. Fitts
  • Flesch-Kincaid Readability Test — Rudolf F. Flesch and J. Peter Kincaid
  • Fletcher effect (economy) — T. W. Fletcher
  • Fletcher effect (physics) (a.k.a. Hartman effect, Hartman-Fletcher effect) — John R. Fletcher (and Thomas E. Hartman)
  • Fletcher effect (psychology) (Fletcher-Munson effect) and Fletcher-Munson curve — Harvey Fletcher and Wilden A. Munson
    • Flynn effect — James R. Flynn
    • Fog index — see Gunning Fog index, below
    • Forbush effect — Scott Ellsworth Forbush
    • Forer effect (a.k.a. Barnum effect) — Bertram R. Forer (and Phineas Taylor Barnum)
    • Foucault effect (a.k.a. Foucault pendulum) — Jean Bernard Léon Foucault
    • Fourier number — Joseph Fourier
    • Franck-Condon factor, principle, transition — James Franck and Edward Uhler Condon
    • Franssen effect — Nico Franssen
    • Franz-Keldysh effect — Walter Franz and Leonid V. Keldysh
    • Fraunhofer diffraction, lines — Joseph von Fraunhofer
    • Fresnel zone — Augustin Fresnel
    • Frey effect — Allan H. Frey
    • Friedel oscillations — Jacques Friedel
    • Friedel-Crafts reaction — Charles Friedel and James Mason Crafts
    • Friedländer synthesis — Paul Friedländer
    • Friedmann-Lemaître-Robertson-Walker metric (a.k.a. Friedmann-Robertson-Walker metric, Robertson-Walker metric) — Alexander Friedmann, Georges Lemaître, Howard Percy Robertson and Arthur Geoffrey Walker
    • Fries and Photo-Fries rearrangement — Karl Theophil Fries
    • Fritsch-Buttenberg-Wiechell rearrangement — Paul Ernst Moritz Fritsch, Wilhelm Paul Buttenberg, and Heinrich G. Wiechell
    • Frobenius algebra, automorphism, method, norm, theorem — Ferdinand Georg Frobenius
    • Fröhlich term — Herbert Fröhlich
    • Froude number — William Froude
    • Fry Readability Formula, Graph — Edward Fry
    • Fujita scale (a.k.a. F-Scale, Fujita-Pearson scale) — Tetsuya Theodore Fujita (and Allen Pearson)
    • Fujiwhara effect — Sakuhei Fujiwhara

    G

    • Gabriel synthesis — Siegmund Gabriel
    • Gantmakher effect — Vsevolod Feliksovich Gantmakher
    • Gattermann reaction — Ludwig Gattermann
    • Gattermann-Koch reaction — Ludwig Gattermann and Julius Arnold Koch
    • Gause's principle/law — Georgyi Frantsevitch Gause
    • Gauss effect, Gauss' law — Carl Friedrich Gauss
    • Geib-Spevack process (a.k.a. Girdler sulfide (GS) process) — Karl-Hermann Geib and Jerome S. Spevack (and the Girdler company, which built the first American plant using the process)
    • Geiger counter (a.k.a. Geiger-Müller counter) — Johannes Wilhelm (Hans) Geiger (and Walther Müller)
    • Geiger-Marsden experiment (a.k.a. Rutherford experiment) — Johannes Wilhelm (Hans) Geiger and Ernest Marsden
    • Geiger-Müller tube — Johannes Wilhelm (Hans) Geiger and Walther Müller
    • Geiger-Nuttall law/rule — Johannes Wilhelm (Hans) Geiger and John Mitchell Nuttall
    • Geissler tube — Heinrich Geissler
    • Gibbs entropy, free energy, paradox, Gibbs' phase rule, Gibbs phenomenon — Josiah Willard Gibbs
    • Gibbs-Donnan effect (a.k.a. Donnan effect) — Josiah Willard Gibbs and Frederick G. Donnan
    • Gibbs-Marangoni effect (a.k.a. Marangoni effect) — Josiah Willard Gibbs and Carlo Marangoni
    • Gibbs-Helmholtz equation — Josiah Willard Gibbs and Hermann von Helmholtz
    • Gibbs-Thomson effect — Josiah Willard Gibbs and three Thomsons: James Thomson, William Thomson, 1st Baron Kelvin, Sir J. J. Thomson
    • Giffen good — Sir Robert Giffen
    • Girdler process (a.k.a. Geib-Spevack (GS) process) — see Geib-Spevack process, above
    • Glaser coupling reaction — Carl Andreas Glaser
    • Goldbach's conjecture — Christian Goldbach
    • Goldstone boson (a.k.a. Nambu-Goldstone boson) — see Nambu-Goldstone boson, below
    • Gomberg-Bachmann reaction — Moses Gomberg and Werner Emmanuel Bachmann
    • Goodhart's law — Charles Goodhart
    • Goos-Hänchen effect/shift — F. Goos and H. Lindberg-Hänchen
    • Graham reaction — William Hardin Graham
    • Grashof number — Franz Grashof
    • Gregory's diverticulum — Emily Ray Gregory
    • Greisen-Zatsepin-Kuzmin cut-off/limit — Kenneth Greisen, Georgiy Zatsepin and Vadim Kuzmin
    • Gresham's law — Sir Thomas Gresham
    • Grieco condensation — Paul Anthony Grieco
    • Griess test (diazotization reaction) — Johann Peter Griess
    • Grignard reaction — François Auguste Victor Grignard
    • Grob fragmentation — Cyril A. Grob
    • Grotrian diagram — Walter Robert Wilhelm Grotrian
    • Grotthuss chain — Christian Johann Dietrich Theodor von Grotthuss
    • Grotthuss-Draper law — Christian Johann Dietrich Theodor von Grotthuss and John William Draper
    • Guggenheim method — Edward Armand Guggenheim
    • Gunn diode, effect — John Battiscombe Gunn
    • Gunning fog index (a.k.a. Fog index) — Robert Gunning ("fog" is the noun)
    • Gutenberg-Richter law — Beno Gutenberg and Charles Francis Richter

    H

    • Haar measure — Alfréd Haar
    • Hadamard inequality — Jacques Solomon Hadamard
    • Hadamard-Rademacher-Walsh transform (a.k.a. Hadamard transform) — Jacques Solomon Hadamard, Hans Adolph Rademacher, and Joseph Leonard Walsh
    • Haldane effect — John Scott Haldane
    • Haldane's principle — John Burdon Sanderson Haldane
    • Hall effect — Edwin Hall
    • Hamilton's rule — William Donald "Bill" Hamilton
    • Hammond postulate — George Simms Hammond
    • Hanle effect — Wilhelm Hanle
    • Hanlon's razor (a.k.a. Heinlein's razor) — Robert J. Hanlon (or Robert A. Heinlein)
    • Hansch constant — Corwin Herman Hansch
    • Hardy notation, space — Godfrey H. Hardy
    • Hardy-Littlewood circle method, first conjecture — Godfrey H. Hardy and John E. Littlewood
    • Hardy-Weinberg equilibrium/law/principle — Wilhelm Weinberg and Godfrey H. Hardy
    • Harrod-Johnson diagram — Roy F. Harrod and Harry G. Johnson
    • Hartley bands — Walter Noel Hartley
    • Hartley oscillator — Ralph Hartley
    • Hartman effect (a.k.a. Fletcher effect, Hartman-Fletcher effect)— Thomas E. Hartman (and John R. Fletcher)
    • Hartree energy — Douglas Hartree
    • Hasse condition, diagram, principle — Helmut Hasse
    • Hasse-Minkowski theorem — Helmut Hasse and Hermann Minkowski
    • Hausdorff dimension — Felix Hausdorff
    • Haworth formula — Sir Walter Norman Haworth
    • Hawthorne effect — from the Hawthorne Works factory (where experiments were carried out 1924—1932)
    • Hayflick limit — Leonard Hayflick
    • Hawking radiation (a.k.a. Bekenstein-Hawking radiation) — Stephen Hawking (and Jacob Bekenstein)
    • Hebbian learning — Donald Olding Hebb
    • Heine-Borel theorem — Heinrich Eduard Heine and Félix Édouard Justin Émile Borel
    • Heinlein's razor — see Hanlon's razor, above
    • Heisenberg uncertainty principle — Werner Heisenberg
    • Hellmann-Feynman theorem — Hans Hellmann and Richard Feynman
    • Helmholtz free energy, Helmholtz resonance — Hermann von Helmholtz
    • Hénon maps — Michel Hénon
    • Henrietta's law — see Leavitt's law, below
    • Herschel effect — Sir John Herschel
    • Hertz effect — Heinrich Rudolf Hertz
    • Hertzsprung-Russell diagram — Ejnar Hertzsprung and Henry Norris Russell
    • Herzberg bands — Gerhard Herzberg
    • Heusler alloy — Fritz Heusler
    • Heyting algebra, arithmetic — Arend Heyting
    • Higgs boson, field — Peter Higgs
    • Higgs' laws — Simon Robert Higgs
    • Higgs mechanism — see Anderson-Higgs mechanism, above
    • Hilbert-Waring theorem (a.k.a. Waring's problem) — David Hilbert and Edward Waring
    • Hill sphere (a.k.a. Roche sphere) — George William Hill (and Édouard Roche)
    • Hills cloud — Jack G. Hills
    • Hipparchic cycle — Hipparchus of Nicaea (a.k.a. Hipparchus of Rhodes)
    • Hirayama family — Kiyotsugu Hirayama
    • Hirsch-Meeks fusor — Robert L. Hirsch and Gene A. Meeks
    • Hoffmann's organ — C. K. Hoffmann
    • Hofstadter's butterfly, law — Douglas Richard Hofstadter
    • Holetschek effect — Johann Holetschek
    • Hooper-Monstein effect – William J. Hooper and Christian Monstein
    • Hopfield bands — John J. Hopfield
    • Hopfield network — John J. Hopfield
    • Hubbert peak — Marion King Hubbert
    • Hubble constant, expansion — Edwin Hubble
    • Hueppe's rule — F. Hueppe
    • Huggins bands — Sir William Huggins
    • Huggins effect — William H. Huggins
    • Hull rule — Clark L. Hull
    • Humphreys line, series — Curtis J. Humphreys
    • Hund's Rules — Friedrich Hund
    • Hunsdiecker reaction — Heinz Hunsdiecker and Cläre Hunsdiecker
    • Hunt effect — Robert W. G. Hunt
    • Hutchison effect — John Hutchison
    • Huygens' principle — Christiaan Huygens

    I

    • Imamura-Iida tsunami intensity scale — Fumihiko Imamura and Kumizi Iida
    • Imamura-Soloviev tsunami intensity scale — Fumihiko Imamura and Sergey L. Soloviev
    • Imbert-Fedorov effect/shift (a.k.a. Imbert-Pavageau-Fedorov effect) — C. Imbert, F. I. Fedorov (and J. Pavageau)
    • Ishikawa diagram — Kaoru Ishikawa
    • Ising model (a.k.a. Lenz-Ising model) — Ernst Ising (and Wilhelm Lenz)

    J

    • Jackson diagram — Michael A. Jackson
    • Jahn–Teller effect — Hermann Arthur Jahn and Edward Teller
    • Jarque-Bera test — Carlos M. Jarque and Anil K. Bera
    • Jeffrey's rule — Richard Jeffrey
    • Johnson–Nyquist noise — John B. Johnson and Harry Nyquist
    • Johnston diagram — Russell Johnston
    • Jonnesco's fossa — Thomas Jonnesco
    • Jordan's rule/law — David Starr Jordan
      • Josephson constant, effect, junction — Brian David Josephson
      • Jost's laws (of rehearsal and forgetting) — Adolf Jost
      • Joule's law (a.k.a. Joule-Lenz law) — James Prescott Joule (and Heinrich Friedrich Emil Lenz)
      • Joule–Thomson effect (a.k.a. Joule–Kelvin effect) — James Prescott Joule and William Thomson, 1st Baron Kelvin

      K

      • K3 surface — Ernst Kummer, Erich Kähler, Kunihiko Kodaira
      • Kac model — Mark Kac
      • Kähler differential, manifold, metric — Erich Kähler
      • Kapitsa–Dirac effect — Pyotr Leonidovich Kapitsa and Paul Dirac
      • Karnaugh map (a.k.a. Karnaugh-Veitch map, Veitch diagram) — Maurice Karnaugh (and Edward W. Veitch)
      • Kater's pendulum — Captain Henry Kater
      • Kaye effect — Alan Kaye
      • Keeling curve — Charles David Keeling
      • Kelvin effect — William Thomson, 1st Baron Kelvin
      • Kelvin-Voigt material, model – Woldemar Voigt and William Thomson, 1st Baron Kelvin
      • Kennelly-Heaviside layer — Arthur Edwin Kennelly and Oliver Heaviside
      • Kerr effect — John Kerr
      • Kiepert hyperbola, parabola — Friedrich Wilhelm August Ludwig Kiepert
      • Kirkendall effect — Ernest Kirkendall
      • Klein-Gordon equation — Oskar Klein and Walter Gordon
      • Klein-Nishina effect — Oskar Klein and Yoshio Nishina
      • Knudsen cell, effect, number — Martin Hans Christian Knudsen
      • Kochen–Specker paradox — Simon Kochen and Ernst Specker
      • Kodaira dimension, embedding theorem, vanishing theorem — Kunihiko Kodaira
      • Kodaira–Spencer mapping — Kunihiko Kodaira, Donald C. Spencer
      • Koenigs–Knorr reaction — Wilhelm Koenigs and Edward Knorr
      • Kohn effect — Walter Kohn
      • Kohn-Sham equations — Walter Kohn and Lu Jeu Sham
      • Kohonen network — Teuvo Kohonen
      • Kolbe-Schmitt reaction and Kolbe electrolysis— Adolph Wilhelm Hermann Kolbe and Rudolf Schmitt
      • Kondo effect — Jun Kondo
      • Kornblum oxidation and Kornblum–DeLaMare rearrangement — Nathan Kornblume and Harold E. DeLaMare
      • Koss–Gräer effect — Brian Koss and David Gräer
      • Kossel effect, Kossel lines, Kossel diagram — Walther Kossel
      • Kossel–Möllenstedt pattern — Walther Kossel and Gottfried Möllenstedt
      • Kosterlitz–Thouless transition — see Berezinsky–Kosterlitz–Thouless transition, above
      • Kostinsky effect — Sergey Konstantinovich Kostinsky (a.k.a. S. K. Kostinskii)
      • Kozai effect — Yoshihide Kozai
      • Krebs cycle — Hans Adolf Krebs
      • Kratzer potential — Adolf Kratzer
      • Krishnan effect — Rappal S. Krishnan
      • Kronecker delta — Leopold Kronecker
      • Kuiper Belt — Gerard Kuiper
      • Kummer's equation, Kummer's functions, Kummer surface — Ernst Kummer
      • Kuramoto model — Yoshiki Kuramoto

      L

      • Lagrangian mechanics, Lagrange points — Joseph Louis Lagrange
      • Laing-Garrington effect — Robert Laing and Simon Garrington
      • Lamb shift (a.k.a. Lamb-Retheford shift) — Willis Lamb (and Robert Retheford)
      • Lambert's emission law (a.k.a. Lambert's cosine law) — Johann Heinrich Lambert
      • Landau damping, pole — Lev Davidovich Landau
      • Landau–Pomeranchuk–Migdal effect — Lev Davidovich Landau, Isaak Pomeranchuk, and Arkady Migdal
      • Landau-Zener transition — Lev Davidovich Landau and Clarence Zener
      • Landé g-factor — Alfred Landé
      • Lange's nerve — W. Lange
      • Langmuir probe — Irving Langmuir
      • Langmuir-Blodgett film — Irving Langmuir and Katharine B. Blodgett
      • Larmor frequency, precession, radius — Sir Joseph Larmor
      • Larsen effect — Soren Larsen
      • Laspeyres index — Ernst Louis Etienne Laspeyres
      • Leavitt's law (a.k.a. Henrietta's law) — Henrietta Swan Leavitt
      • Le Chatelier's principle — Henri Louis Le Chatelier
      • Leduc-Righi effect (a.k.a. Righi-Leduc effect) — S. Leduc and Augusto Righi
      • Leidenfrost effect, point — Johann Gottlob Leidenfrost
      • Lenard effect — Philipp Eduard Anton von Lenard
      • Lennard-Jones potential — John Lennard-Jones
      • Lense-Thirring effect (a.k.a. Thirring effect) — Josef Lense and Hans Thirring
      • Lenz's law — Heinrich Friedrich Emil Lenz
      • Lenz-Ising model — see Ising model, above
      • Levi-Civita symbol — Tullio Levi-Civita
      • Little-Parks effect — W. A. Little and R. D. Parks
      • Littlewood-Offord problem — John E. Littlewood and A. Cyril Offord
      • Locard's exchange principle – Edmond Locard
      • Lohmann-Ruchti effect — Martin Lohmann and Hans Ruchti
      • Lombard effect — Étienne Lombard
      • Lomonosov effect — Mikhail Vasilyevich Lomonosov
      • London force — Fritz London
      • Lorentz force, transformation — Hendrik Antoon Lorentz
      • Lorentz-Lorenz equation — Hendrik Antoon Lorentz and Ludvig Lorenz
      • Lorenz attractor — Edward Norton Lorenz
      • Lorenz curve — Max O. Lorenz
      • Lorenz gauge condition — Ludvig Lorenz
      • Lorenz-Mie scattering — see Mie scattering, below
      • Lorenzini's ampullae — Stefano Lorenzini
      • Loschmidt's paradox — Johann Loschmidt
      • Lossev effect — O. V. Lossev
      • Lotka-Volterra equation — Alfred J. Lotka and Vito Volterra
      • Love waves — Augustus Edward Hough Love
      • Lucas critique — Robert Lucas, Jr.
      • Ludwig's nerve — Hubert Ludwig
      • Lyapunov's central limit theorem, condition, equation, exponent, fractal, function, stability, test, time and tube — Aleksandr Mikhailovich Lyapunov
      • Lyman line, series — Theodore Lyman
      • Lyman-Birge-Hopfield bands (a.k.a. Birge-Hopfield bands) — Theodore Lyman, Raymond T. Birge, and John J. Hopfield

      M

      • Mach band/effect, number, principle — Ernst Mach
      • Mach-Zehnder interferometer — Ernst Mach and Ludwig Zehnder
      • Madelung constant, Madelung rule, Madelung energy — Erwin Madelung
      • Maggi-Righi-Leduc effect — Gian Antonio Maggi, Augusto Righi and S. Leduc
      • Magnus effect — Heinrich Gustav Magnus
      • Mahalanobis distance — Prasanta Chandra Mahalanobis (প্রশান্ত চন্দ্র মহলানবিস)
      • Mahler measure, Mahler's theorem — Kurt Mahler
      • Malmquist bias, effect — Karl Gunnar Malmquist
      • Malus' law — Étienne-Louis Malus
      • Malthusian parameter — named by Ronald Fisher as a criticism of Thomas Robert Malthus
      • Malthusian catastrophe, growth model — Thomas Robert Malthus
      • Mandel'shtam-Brillouin scattering — Leonid Isaakovich Mandel'shtam and Léon Brillouin
      • Marangoni cell/convection (a.k.a. Bénard-Marangoni convection) — see Bénard-Marangoni cell/convection, above
      • Marangoni effect (a.k.a. Gibbs-Marangoni effect) — see Gibbs-Marangoni effect, above
      • Markov's inequality, chain, partition, Markovian process — Andrey Markov
      • Mathieu functions — Émile Léonard Mathieu
      • Matilda effect — Matilda Joslyn Gage
      • Matthew effect — Matthew the Evangelist
      • Maxwell effect (optics) — James Clark Maxwell
      • Maxwell-Boltzmann distribution — James Clark Maxwell and Ludwig Boltzmann
      • Maxwell-Wien bridge — James Clark Maxwell(?) and Wilhelm Wien
      • Mazurkiewicz trace — Antoni Mazurkiewicz
      • McCollough effect — Celeste McCollough
      • McCulloch-Pitts neuron — Warren McCulloch and Walter Pitts
      • McGurk effect (a.k.a. McGurk-MacDonald effect) — Harry McGurk (and John MacDonald
      • Meissner effect (a.k.a. Meissner-Ochsenfeld effect) — Walter Meissner (and Robert Ochsenfeld)
      • Mercalli intensity scale (Modified Mercalli scale) — Giuseppe Mercalli
      • Metonic cycle — Meton of Athens
      • Meyers synthesis — Albert I. Meyers
      • Mie scattering (a.k.a. Lorenz-Mie scattering) — Gustav Mie (and Ludvig Lorenz)
      • Mihăilescu's theorem (a.k.a. Catalan's conjecture) — Preda Mihăilescu
      • Mikheyev-Smirnov-Wolfenstein effect — Stanislav Mikheyev, Alexei Smirnov, and Lincoln Wolfenstein
      • Miller effect — John Milton Miller (John M. Miller)
      • Miller indices (a.k.a. Miller-Bravais indices) — William Hallowes Miller (and Auguste Bravais)
      • Misznay-Schardin effect — Col. Misznay and Hubert Schardin
      • Mögel–Dellinger effect — see Dellinger effect, above
      • Mohorovičić discontinuity (Moho) — Andrija Mohorovičić
      • Mohr's circle — Christian Otto Mohr
      • Mohr-Coulomb theory — Christian Otto Mohr and Charles-Augustin de Coulomb
      • Morgan unit — Thomas Hunt Morgan
      • Morse potential — Philip M. Morse
      • Mössbauer effect — Rudolf Mössbauer
      • Mott cross-section, Mott insulator, Mott transition — Nevill Francis Mott
      • Mpemba effect — Erasto B. Mpemba
      • Müllerian mimicry — Fritz Müller
      • Munroe effect — Charles Edward Munroe
      • Murphy's law — Maj. Edward A. Murphy, Jr.

      N

      • Nambu-Goldstone boson (a.k.a. Goldstone boson) — Yoichiro Nambu and Jeffrey Goldstone
      • Nash equilibrium — John Forbes Nash
      • Nassi-Shneiderman diagram — Isaac Nassi and Ben Shneiderman
      • Necker cube — Louis Albert Necker
      • Néel temperature — Louis Néel
      • Nernst equation — Walther Hermann Nernst
      • Nernst-Ettingshausen effect — Walther Hermann Nernst and Albert von Ettingshausen
      • Newcomb's paradox — William Newcomb
      • Newton's rings, Newtonian constant, mechanics — Isaac Newton
      • Nichols-Tolman effect — Nichols and Richard Chace Tolman
      • Nordmann-Tikhoff effect — Charles Nordmann and Gavriil Adrianovich Tikhov
      • Nordtvedt effect — Kenneth L. Nordtvedt
      • Nurgaliev's law — Ildus S. Nurgaliev
      • Nyquist frequency, Nyquist rate — Harry Nyquist
      • Nyquist-Shannon sampling theorem (a.k.a. Nyquist-Shannon-Kotelnikov, Whittaker-Shannon-Kotelnikov, Whittaker-Nyquist-Kotelnikov-Shannon, WKS theorem) — Harry Nyquist, Claude Shannon, E. T. Whittaker, and Vladimir Kotelnikov

      O

      • O'Connell effect — Daniel Joseph Kelly O'Connell
      • Olbers' paradox — Heinrich Wilhelm Olbers
      • Ohm's law — Georg Ohm
      • Okun's law — Arthur Okun
      • Omori's law — Fusakichi Omori
      • Onnes effect — Heike Kamerlingh Onnes
      • Oort cloud (a.k.a. Öpik-Oort Cloud) — Jan Hendrik Oort (and Ernst Julius Öpik)
      • Ostwald's dilution law, Ostwald process — Friedrich Wilhelm Ostwald
      • Overhauser effect — Albert Overhauser
      • Ovshinsky effect — Stanford R. Ovshinsky

      P

      • Paal-Knorr synthesis — Carl Paal and Ludwig Knorr
      • Pareto chart, distribution, efficiency, index, principle — Vilfredo Federico Damaso Pareto
      • Parrondo's paradox — J. M. R. Parrondo
      • Paschen curve, line, law — Friedrich Paschen
      • Paschen-Back effect — Friedrich Paschen and Ernst Back
      • Paternò-Büchi reaction - Emanuele Paternò and George Hermann Büchi
      • Pasteur effect — Louis Pasteur
      • Pauli exclusion principle — Wolfgang Pauli
      • Peano curve — Giuseppe Peano
      • Pearson-Anson effect — S. O. Pearson and H. St. G. Anson
      • Péclet number — Jean Claude Eugène Péclet
      • Peltier effect — Jean Charles Athanase Peltier
      • Perlin noise — Ken Perlin
      • Perron-Frobenius theorem — Oskar Perron, and Ferdinand Georg Frobenius
      • Petkau effect — Abram Petkau
      • Petri dish — Julius Richard Petri
      • Petri net — Carl Adam Petri
      • Peyer's patches — Johann Conrad Peyer
      • Pfund line, series — August Herman Pfund
      • Phillips curve — William Phillips (economist)
      • Pigou effect — Arthur Cecil Pigou
      • Pisot-Vijayaraghavan number — Charles Pisot and Tirukkannapuram Vijayaraghavan
      • Planck constant, length, mass, time — Max Planck
      • Platonic year — Plato
      • Pockels effect — Friedrich Carl Alwin Pockels
      • Pogson ratio — Norman Robert Pogson
      • Poincaré map, section — Jules-Henri Poincaré
      • Poincaré-Bendixson theorem — Jules-Henri Poincaré and Ivar Otto Bendixson
      • Poinsot spiral — Louis Poinsot
      • Polian vesicles — Giuseppe Saverio Poli
      • Potts cluster, Potts model (a.k.a. Ashkin-Teller model) — Renfrey B. Potts
      • Pourbaix diagram — Marcel Pourbaix
      • Poynting effect, vector — John Henry Poynting
      • Poynting-Robertson effect — John Henry Poynting and Howard Percy Robertson
      • Prandtl number — Ludwig Prandtl
      • Primakov effect — ? Primakov
      • Proteus phenomenon — Proteus (mythological god)
      • Prouho's membrane — Henri Prouho
      • Pulfrich effect — Carl Pulfrich
      • Purkinje effect/shift — Johannes Evangelista Purkinje
      • Pygmalion effect (a.k.a. Rosenthal effect, Observer-expectancy effect) — Pygmalion (and Robert Rosenthal)

      R

      • Rabi oscillations — Isidor Isaac Rabi
      • Rademacher distribution, function, series, sum — Hans Adolph Rademacher
      • Rademacher-Kolmogorov theorem — Hans Adolph Rademacher and Andrey Nikolaevich Kolmogorov
      • Rademacher-Menchov theorem — Hans Adolph Rademacher and ? Menchov
      • Raman scattering — Chandrasekhara Venkata Raman
      • Ramsauer-Townsend effect (a.k.a. Ramsauer effect, Townsend effect) — Carl Ramsauer and John Sealy Townsend
      • Ramsden circle/disc/eyepoint, eyepiece — Jesse Ramsden
      • Ramsey spectroscopy - Norman F. Ramsey
      • Ramsey theory — Frank Plumpton Ramsey
      • Ramsey-DeFinetti theorem — Frank Plumpton Ramsey and Bruno de Finetti
      • Rapoport's rule — Eduardo H. Rapoport
      • Raychaudhuri's equation — Amal Kumar Raychaudhuri (অমল কুমার রায়চৌধুরী)
      • Raygor Estimate Graph — Alton L. Raygor
      • Rayleigh criterion, distribution, fading, number, quotient, scattering, waves — Lord Rayleigh
      • Rayleigh-Bénard cell/convection — Lord Rayleigh and Henri Bénard
      • Rayleigh-Jeans law — Lord Rayleigh and Sir James Jeans
      • Reidemeister moves — Kurt Reidemeister
      • Rescorla-Wagner rule — Robert A. Rescorla and Allan R. Wagner
      • Reynolds number, Reynolds analogy — Osborne Reynolds
      • Ribot's law (of Retrograde Amnesia) — Théodule Ribot
      • Ricardian equivalence — see Barro-Ricardo equivalence, above
      • Richardson's constant, equation, law — Owen Willans Richardson
      • Richardson number — Lewis Fry Richardson
      • Richter magnitude scale — Charles Francis Richter
      • Righi-Leduc effect (a.k.a. Leduc-Righi effect) — Augusto Righi and S. Leduc
      • Ringelmann effect — Max Ringelmann
      • Robertson-Walker metric (a.k.a. Friedmann-Robertson-Walker metric) — see Friedmann-Lemaître-Robertson-Walker metric, above
      • Roche limit — Édouard Roche
      • Roche sphere (a.k.a. Hill sphere) — Édouard Roche (and George William Hill)
      • Rollin film — Bernard V. Rollin
      • Rosenthal effect (a.k.a. Pygmalion effect, Observer-expectancy effect) — Robert Rosenthal (and Pygmalion)
      • Rossi-Forel scale — Michele Stefano Conte de Rossi and François-Alphonse Forel
      • Rössler equation — Otto Rössler
      • Rossmann fold — Michael Rossmann
      • Ruelle operator, zeta function — David Ruelle
      • Ruelle-Perron-Frobenius theorem — David Ruelle, Oskar Perron, and Ferdinand Georg Frobenius
      • Ruhmkorff coil — Heinrich D. Ruhmkorff
      • Runge's phenomenon — Carle David Tolmé Runge
      • Russell's paradox — Bertrand Russell
      • Rutherford experiment (a.k.a. Geiger-Marsden experiment), scattering — Ernest Rutherford
      • Rybczynski theorem — Tadeusz Rybczynski
      • Rydberg constant, formula — Johannes Rydberg

      S

      • Sabatier or Sabattier effect — Sabat[t]ier, first name unknown
      • Sachs-Wolfe effect — Rainer Kurt Sachs and Arthur Michael Wolfe
      • Saffir-Simpson hurricane scale — Herbert S. Saffir and Robert ("Bob") Simpson
      • Sagnac effect — Georges Sagnac
      • Saha ionization equation (a.k.a. Saha-Langmuir equation) — Megh Nad Saha (মেঘনাদ সাহা) (and Irving Langmuir)
      • Sasakian manifold, metric — Shigeo Sasaki
      • St. Elmo's fire — Erasmus of Formiae
      • Salem number — Raphaël Salem
      • Say's law — Jean-Baptiste Say
      • Schering Bridge — Harald Schering
      • Schild plot, regression analysis — Heinz Otto Schild
      • Schottky effect — Walter H. Schottky
      • Schröter effect — Johann Hieronymus Schröter
      • Schülen-Wilson effect — see Wilson effect, below
      • Schuler period, tuning — Maximilian Schuler
      • Schumann-Runge bands — Victor Schumann and Carle David Tolmé Runge
      • Schwarzschild effect, metric, radius — Karl Schwarzschild
      • Scott effect — Elizabeth L. Scott
      • Searl effect — John R. R. Searl
      • Secchi (stellar) class, depth, disk — Pietro Angelo Secchi
      • Seebeck effect — Thomas Johann Seebeck
      • Sertoli cells — Enrico Sertoli
      • Serre duality — Jean-Pierre Serre
      • Seyfert galaxy — Carl Keenan Seyfert
      • Shapiro effect — Irwin Shapiro
      • Shimizu-Morioka equations — Tatsujiro Shimizu and N. Morioka
      • Shubnikov-De Haas effect — see De Haas-Shubnikov effect, above
      • Sieberg tsunami intensity scale — August H. Sieberg
      • Sieberg-Ambraseys tsunami intensity scale — August H. Sieberg and Nicholas N. Ambraseys
      • Simmons-Smith reaction — Howard Ensign Simmons, Jr.
      • Simroth's organs — Heinrich Rudolf Simroth
      • Smale's horseshoe — Stephen Smale
      • Smale-Rössler theorem — Stephen Smale and Otto Rössler
      • Snell's law — Willebrord van Roijen Snell
      • Soloviev tsunami intensity scale — Sergey L. Soloviev
      • Sommerfeld-Kossel displacement law — Arnold Sommerfeld and Walther Kossel
      • Spörer's law, Spörer Minimum — Gustav Spörer
      • Staebler-Wronski effect — David L. Staebler and Christopher R. Wronski
      • Stark effect (a.k.a. Stark-Lo Surdo effect) — Johannes Stark (and Antonino Lo Surdo)
      • Stark ladder (a.k.a. Wannier-Stark ladder, q.v.) — Johannes Stark and Gregory Hugh Wannier
      • Stark-Einstein law — Johannes Stark and Albert Einstein
      • Stebbins-Whitford effect — Joel Stebbins and Albert Edward Whitford
      • Stefan's constant, law (a.k.a. Stefan-Boltzmann constant, law) — Jožef Stefan (and Ludwig Boltzmann)
      • Stensen's duct — Niels Stensen
      • Stern-Levison parameter — S. Alan Stern and Harold F. Levison
      • Stevens effect — J. C. and Stanley Smith Stevens
      • Stevens' power law — Stanley Smith Stevens
      • Stewart's organs — Charles Stewart
      • Stewart-Tolman effect — Thomas Dale Stewart and Richard Chace Tolman
      • Stirling number — James Stirling
      • Stokes radius — George Gabriel Stokes
      • Stokes shift — George Gabriel Stokes
      • Stolper-Samuelson theorem — Paul Samuelson and Wolfgang Stolper
      • Strömgren age, photometry, sphere — Bengt Georg Daniel Strömgren
      • Strömgren-Crawford photometry — Bengt Georg Daniel Strömgren and David L. Crawford
      • Stroop effect — John Ridley Stroop
      • Strouhal number — Vincenc Strouhal
      • Stückelberg action — Ernst Carl Gerlach Stueckelberg
      • Sturgeon's law — Theodore Sturgeon
      • Sturmian trajectories — Charles François Sturm
      • Suess effect — Hans Eduard Suess
      • Sunyaev-Zel'dovich effect — Rashid Sunyaev and Yakov Zel'dovich

      T

      • Tait-Bryan angles (a.k.a. Cardan angles, nautical angles) — Peter Guthrie Tait and George Bryan (?)
      • Talbot effect — William Henry Fox Talbot
      • Teller-Ulam design — Edward Teller and Stanisław Ulam
      • Tesla effect, oscillation (a.k.a. Vackár oscillation) — Nikola Tesla (and Jirí Vackár)
      • Thévenin's theorem — Léon Charles Thévenin
      • Thirring effect — see Lense-Thirring effect, above
      • Thomas precession — Llewellyn Thomas
      • Thomas-Fermi approximation, model — Llewellyn Hilleth Thomas and Enrico Fermi
      • Thomson cross-section, effect — William Thomson, 1st Baron Kelvin
      • Thorndike's laws (of effect, readiness, and exercise) — Edward L. Thorndike
      • Thorson's rule — Gunnar Thorson
      • Thouless energy — David J. Thouless
      • Tiedemann's bodies — Friedrich Tiedemann
      • Tiffeneau-Demjanov rearrangement - Marc Tiffeneau and Nikolai Demyanov
      • Tobin's q — James Tobin
      • Tolman effects — Richard Chace Tolman
      • Tolman-Oppenheimer-Volkoff limit — Richard Chace Tolman, J. Robert Oppenheimer, and George Michael Volkoff
      • Tonks-Girardeau gas — Lewi Tonks and Marvin D. Girardeau
      • Townsend effect (a.k.a. Ramsauer effect, Ramsauer-Townsend effect), ionization coefficient — John Sealy Townsend
      • Tricomi's equation — Francesco Giacomo Tricomi
      • Troxler's effect/fading — Ignaz Paul Vital Troxler
      • Tsytovich effect — Vadim N. Tsytovich
      • Tsytovich-Razin effect (a.k.a. Tsytovich-Eidman-Razin effect) — see Razin effect, above
      • Tychonoff space — Andrey Nikolayevich Tychonoff
      • Tyndall effect/scattering — John Tyndall

      U

      • Unruh effect — William G. Unruh

      V

      • Vackár oscillator (a.k.a. Tesla oscillator) — Jirí Vackár (and Nikola Tesla)
      • Van Allen radiation belt — James Van Allen
      • Van de Graaff generator — Dr. Robert Jemison Van de Graaff
      • Van der Pol equation, oscillator — Balthasar van der Pol
      • Van der Waals force — Johannes Diderik van der Waals
      • Van Hove singularity — Léon Van Hove
      • Van Stokum cylinder — W. J. van Stokum
      • Vavilovian mimicry — Nikolai Ivanovich Vavilov
      • Veblen effect — Thorstein Veblen
      • Veitch diagram — see Karnaugh map, above
      • Venturi effect — Giovanni Battista Venturi
      • Venn diagram — John Venn
      • Voigt effect, notation, profile — Woldemar Voigt
      • Voigt material — see Kelvin-Voigt material, above
      • Von Klitzing constant — Klaus von Klitzing
      • Von Neumann ordinal, von Neumann architecture — John von Neumann
      • Von Restorff effect — Hedwig von Restorff

      W

      • Wadati-Benioff zone (a.k.a. Benioff zone) — Kiyoo Wadati and Hugo Benioff
      • Wahlund effect — Sten Gösta William Wahlund
      • Wallace's line — Alfred Russel Wallace
      • Walras' law — Leon Walras
      • Wannier function, orbital — Gregory Wannier
      • Wannier-Stark ladder (a.k.a. Stark ladder) — Gregory Wannier and Johannes Stark
      • Warburg effect — Otto Warburg
      • Waring's problem (a.k.a. Hilbert-Waring theorem) — Edward Waring (and David Hilbert)
      • Weberian apparatus — Ernst Heinrich Weber
      • Weierstrass-Casorati theorem — Karl Theodor Wilhelm Weierstrass and Felice Casorati
      • Weierstrass's elliptic functions, factorization theorem, function, M-test, preparation theorem — Karl Theodor Wilhelm Weierstrass
      • Weissenberg effect — Karl Weissenberg
      • Weston cell — Edward Weston
      • Wheatstone bridge — Sir Charles Wheatstone (improved and popularized it; the inventor was Samuel Hunter Christie)
      • Whittaker function, Whittaker integral, Whittaker model — E. T. Whittaker
      • Whittaker–Shannon interpolation formula — E. T. Whittaker, J. M. Whittaker, Claude Shannon
      • Widrow-Hoff rule — Bernard Widrow and Ted Hoff
      • Wiedemann-Franz law — Gustav Wiedemann and Rudolf Franz
      • Wien bridge (Wien's bridge), constant, effect, law — Wilhelm Wien
      • Wiener filter, process — Norbert Wiener
      • Wigmore chart — John Henry Wigmore
      • Wigner energy, Wigner effect — Eugene Wigner
      • Wigner-Seitz cell — Eugene Wigner and Frederick Seitz
      • Willshaw network — David J. Willshaw
      • Wilson cycle — John Tuzo Wilson
      • Wilson effect (a.k.a. Schülen-Wilson effect) — Alexander Wilson (and ? Schülen)
      • Wilson-Bappu effect — Olin Chaddock Wilson and Manali Kallat Vainu Bappu
      • Wollaston prism — William Hyde Wollaston
      • Woodward-Hoffmann rules — Robert Burns Woodward and Roald Hoffmann
      • Woodward effect — James F. Woodward
      • Wolf effect — Emil Wolf
      • Wulf bands — Oliver R. Wulf

      Y

      • Yarkovsky effect — Ivan Osipovich Yarkovsky
      • YORP effect — Ivan Osipovich Yarkovsky, John A. O'Keefe, V. V. Radzievskii, and Stephen J. Paddack
      • Young diagram (a.k.a. Ferrers diagram), Young tableau — Alfred Young
      • Young's modulus — Thomas Young

      Z

      • Zeeman effect — Pieter Zeeman
      • Zener effect — Clarence Melvin Zener
      • Zeno effect — Zeno of Elea
      • Zipf's law — George K. Zipf

      See also

      • Eponyms
      • Fields of science
      • List of eponymous medical signs
      • List of scientists
      • Lists of etymologies
      • Scientific constants named after people
      • Scientific laws named after people