| Victims
| Name(s)
| Location
| Time active
| Additional information
|
| ~80-612
| Elizabeth Báthory
| Čachtice, Kingdom of Hungary
| 1585 to 1610
| Total unknown, but evidence points to between 80 and 612 victims. |
| ~125-931
| Thug Behram
| India
| 1790 to 1830
| Thugee cult leader. Total disputed. |
| 300+
| Pedro López
| Colombia, Peru, Ecuador
| 1978 to 1980
| Total unknown. |
| 250
| Dr Harold Shipman
| Hyde, United Kingdom
| 1975 to 1998
| Estimated; only 218 positively identified by subsequent inquiry |
| ~172
| Luis Garavito
| Colombia
| 1992 to 1998
| |
| 103+
| Miyuki Ishikawa
| Shinjuku, Tokyo, Japan
| 1944 to 1948
| |
| 100
| Javed Iqbal
| Lahore, Pakistan
| 1996 to 1999
| |
| 128
| Pier Gerlofs Donia
| Kimswerd, Frisia
| 1515 to 1519
| |
| 91
| Delfina and María de Jesús González
| Guanajuato, Mexico
| 1955 - 1964
| |
| 80-200+
| Gilles de Rais
| France
| 1435 to 1440
| Estimated totals range substantially. |
| 72
| Daniel Barbosa
| Colombia, Ecuador
| 1986 to 1988 |
| 67
| Yang Xinhai
| People's Republic of China
| 2000 to 2003
| |
| 58+
| Giuseppe Greco
| Sicily, Italy
| 1977 to 1985
| At least 58 murders; exact total unknown. |
| 57
| Woo Bum-kon
| Gyeongsangnam-do, South Korea
| April 26 to April 271982
| |
| 53
| Andrei Chikatilo
| Rostov-on-Don, USSR
| 1978 to 1990
| |
| 52
| Anatoly Onopriyenko
| Lviv, Ukraine
| 1989 to 1996
| |
| 48
| Alexander Pichushkin
| Moscow, Russia
| 2001 to 2006
| Known as the Chessboard Killer. Confessed to 15 more. |
| 48
| Gary Ridgway
| Green River Valley, Washington, United States
| 1982 to 2000
| Known as The Green River Killer. |
| 45
| Andrew Kehoe
| Bath, Michigan
| May 181927
| Known as the Bath School Massacre. |
| 43
| David Burke
| San Luis Obispo, California
| December 71987
| |
| 38
| Moses Sithole
| South Africa
| 1994 to 1995
| |
| 36
| Donald Harvey
| Kentucky and Ohio, United States
| 1970 to 1987
| Claims responsibility for another 51 murders. |
| 35
| Martin Bryant
| Port Arthur, Tasmania, Australia
| April 281996
| Known as the Port Arthur Massacre. |
| 35
| Ted Bundy
| Washington, Utah, Florida and other states, United States
| 1974 to 1978
| |
| 35
| Vera Renczi
| Bucharest, Romania
| 1920s to 1930s
| |
| 34
| Ahmed Bragimov
| Mekenskaya, Chechnya, Russia
| October 81999
| |
| 33
| John Wayne Gacy
| Chicago, United States
| 1972 to 1978
| |
| 32
| Seung-Hui Cho
| Blacksburg, Virginia, United States
| April 162007
| Known as the Virginia Tech Massacre. |
| 30
| Mutsuo Toi
| Tsuyama, Okayama, Japan
| May 211938
| Known as the Tsuyama massacre. |
| 29+
| Charles Cullen
| New Jersey and Pennsylvania, United States
| 1988 to 2003
| Cullen has admitted to more murders, which authorities believe are likely, but the murders cannot be verified. |
| 27
| Dean Corll
| Houston, Texas, United States
| 1970 to 1973
| |
| 27
| Fritz Haarmann
| Hanover, Germany
| 1919 to 1924
| |
| 27
| H. H. Holmes
| Chicago, United States
| 1893 to 1895
| Total disputed. |
| 27
| Cedric Maake
| Johannesburg, South Africa
| 1996 to 1997
| |
| 27
| Maria Swanenburg
| Leiden, Netherlands
| 1880 to 1883
| |
| 26+
| Robert Pickton
| Port Coquitlam, British Columbia, Canada
| 1995 to 2001
| |
| 26
| Marcel Petiot
| Paris, France
| 1926 to 1944
| Petiot is suspected of having killed up to 63 in total. |
| 25
| Leonard Lake and Charles Ng
| Wilseyville, California, United States
| ~1982 to 1985
| |
| 24
| Béla Kiss
| Cinkota, Hungary
| 1912 to 1916
| |
| 23
| George Jo Hennard
| Killeen, Texas, United States
| October 161991
| |
| 22
| Arnfinn Nesset
| Orkdal, Norway
| ? to 1983
| |
| 21
| William Bonin
| California, United States
| 1979 to 1980
| |
| 21
| James Oliver Huberty
| San Ysidro, California, United States
| July 181984
| Known as the San Ysidro McDonald's massacre |
| 21
| Patrick Kearney
| California, United States
| 1965 to 1977
| |
| 20
| Francis Heaulme
| France
| 1984 to 1992
| |
| 20
| Yoo Young-Chul
| Seoul, South Korea
| 2003 to 2004
| |
| 19
| Sipho Thwala
| KwaZulu-Natal, South Africa
| 1996 to 1997
| Known as the Phoenix Strangler. |
| 19
| Sergei Ryakhovsky
| Moscow, Russia
| 1988 to 1993
| Known as the Balakshikha Ripper |
| 17
| Joel Rifkin
| New York City, United States
| 1989 to 1993
| |
| 17
| William Burke and William Hare
| Edinburgh, Scotland
| 1827 to 1828
| Known as the West Port murders |
| 17
| Jeffrey Dahmer
| Ohio and Wisconsin, United States
| 1978 to 1991
| |
| 17
| Thomas Hamilton
| Dunblane, Scotland
| March 131996
| Known as the Dunblane massacre. |
| 17
| Robert Steinhäuser
| Erfurt, Germany
| April 262002
| Known as Erfurt massacre. |
| 16
| Charles Ray Hatcher
| Missouri, California and Illinois, United States
| 1969 to 1982
| |
| 16
| Michael Robert Ryan
| Hungerford, England
| August 191987
| Known as the Hungerford Massacre. |
| 16
| Randy Steven Kraft
| California, United States
| 1969 to 1983
| Confessed to 51 further murders. |
| 16
| The Monster of Florence
| Florence, Italy
| 1968 to 1985
| Pietro Pacciani was convicted of the murders in 1994, but the decision was controversially overturned. |
| 16
| Ronald Gene Simmons
| Russellville, Arkansas, United States
| December 22 to December 261987
| |
| 16
| Sipho Thwala
| KwaZulu-Natal province, South Africa
| 1996 to 1997
| |
| 15
| Dennis Nilsen
| London, United Kingdom
| 1978 to 1983
| |
| 15
| Charles Whitman
| Austin, Texas, United States
| July 31 to August 11966
| |
| 15
| Jack Unterweger
| Vienna, Austria; Los Angeles, California, United States; Prague, Czech Republic
| 1974 to 1992
| |
| 15
| Robert Hansen
| Alaska, United States
| 1980 to 1983
| |
| 14
| Patrick Sherrill
| Edmond, Oklahoma, United States
| August 201986
| Postal shooting. |
| 14
| Marc Lépine
| Montreal, Quebec, Canada
| December 61989
| Known as the École Polytechnique massacre. |
| 14
| Friedrich Leibacher
| Zug, Switzerland
| September 272001)
| |
| 13
| Howard Unruh
| Camden, New Jersey, United States
| September 61949
| |
| 13
| Boston Strangler
| Boston, United States
| 1962 to 1964
| Although Albert DeSalvo was widely thought to be the Boston Strangler, police and others analysing the case have long doubted the truth of his confession. |
| 13
| Vasiliy Kulik
| Irkutsk, USSR
| 1984 to 1986
| Known as the Irkutsk Monster. |
| 13
| Peter Sutcliffe
| West Yorkshire, United Kingdom
| 1975 to 1980
| Known as the Yorkshire Ripper. |
| 13
| Robert Lee Yates
| Spokane, Washington, United States
| 1975 to 1998
| |
| 13
| Richard Ramirez
| Southern California, United States
| 1984 to 1985
| |
| 13
| George Banks
| Wilkes-Barre, Pennsylvania, United States
| 1982
| |
| 13
| Eric Borel
| Toulon, France
| 1994
| |
| 13
| Eric Harris and Dylan Klebold
| Columbine, Colorado, United States
| April 201999
| Known as the Columbine High School massacre |
| 12
| Sadamichi Hirasawa
| Tokyo, Japan
| January 261948
| It is suspected that he was falsely charged |
| 12
| Maxim Petrov
| St. Petersburg, Russia
| 2000 to 2002
| Doctor who killed patients. |
| 12
| Fred West
| Gloucester, England
| 1973 to 1987
| |
| 12
| Kenneth Bianchi and Angelo Buono
| Los Angeles, California, United States
| 1977 to 1978
| |
| 11
| Henri Désiré Landru
| Paris, France
| 1914 to 1918
| |
| 11
| Clifford Olson
| Lower Mainland, British Columbia, Canada
| 1980 to 1981
| |
| 11
| Sergey Golovkin
| Moscow, Russia
| 1986 to 1992
| |
| 11
| Charles Starkweather
| Nebraska, Missouri, and Wyoming
| 1957 to 1958
| |
| 10
| Tore Hedin
| Annelöv, Landskrona, Sweden
| 1951 to 1952
| |
| 10
| Walter Seifert
| Cologne, Germany
| June 111964
| |
| 10
| Edmund Kemper
| Santa Cruz, California, United States
| 1964 to 1973
| |
| 10
| Dennis Rader
| Sedgwick County, Kansas, United States
| 1974 to 1991
| |
| 10
| Kumatarō Kido and Yagorō Tani
| Osaka Prefecture, Japan
| 1893
| |
