Core may refer to:

• The single seed in the center of a cherry, peach, plum, olive, avocado or other fruit
• Apple core, the center of an apple
• planetary core, the center of a planet
• Core (or Kore), an alias of the goddess Persephone
• CORE (Brazil), state Police SWAT team

Core may also refer to:

Science and academics

• Core (group), in mathematics, an object in group theory
• Core (functional analysis), in mathematics, a subset of the domain of a closable operator
• core (graph theory), in mathematics, the homomorphically minimal subgraph of a graph
• Core of a triangulated category in mathematics
• Core (economics), the collection of stable allocations that no coalition can improve upon
• Solar core, the region of the Sun where nuclear fusion takes place
• Lithic core, in archaeology, a stone artifact left over from toolmaking
• Core curriculum, in education, an essential part of the curriculum
• Core sample, in Earth science, a sample obtained by coring
• Core countries, in dependency theory, an industrialized country on which peripheral countries depend
• Core (anatomy), everything except the appendages

Computers and technology

• Semiconductor intellectual property core, part of a CPU design
• Multi-core, a type of microprocessor design in which multiple processors coexist on the same chip
• Intel Core, in computing, a family of CPUs released by Intel
• Magnetic core memory, in computing, the primary memory
• Core dump, in computing, a record of the core memory
• Nuclear reactor core, a portion containing the fuel components
• Magnetic core, in electricity and electronics, ferromagnetic material around which wires are wound
• The signal-carrying portion of an optical fiber
• Foundry core or mold core, concepts used in casting
• In programming languages, the parts of a language that are conventionally made available by all implementations of the language
• In computer networking, the main data transfer backbone of a network in certain topologies
• Mac OS X has a number of Core APIs including Core Animation, Core Video, Core Image, Core Audio, Core Location, Core Services, Core Text, Core OpenGL and Core Data.
• Challenge Of Reverse Engineering : A cracking group

Media

• Core (album), by Stone Temple Pilots
• Core (Persefone album)
• Core (radio station), a digital radio station in the United Kingdom
• 90.3 The Core RLC-WVPH, a radio station in Piscataway, New Jersey
• The Core, a 2003 science fiction film
• Core Design, a videogame developer best known for the Tomb Raider series
• C.O.R.E., a computer animation studio

Places

• Core, San Diego, California, a neighborhood in the United States

Charities

• Core, the working name of the Digestive Disorders Foundation

Acronyms

• Central Organization For Railway Electrification, an organization in India
• Congress of Racial Equality, United States civil rights organization
• Coordinated Online Register of Electors, central database in the United Kingdom
• China Open Resources for Education, an OpenCourseWare organization in China
• Center for Orthopedic Research and Education, an Orthopedic Surgery private physician practice in Arizona