Identity

Identity may refer to:

Philosophical topics

Identity (philosophy), also called sameness, is whatever makes an entity definable and recognizable
Law of identity, principle of logic stating that an object is the same as itself
Personal identity, the numerical identity (continuity of existence) of persons through time

Self-concept, one's cognitive representation of one's own identity.
Identity formation, the process of the development of the distinct personality of an individual
Identity (social science), individuality, personal identity, social identity, and cultural identity in psychology, sociology, and philosophy
Persona, a social role or a character played by an actor with oneself
Personal name, a combination of sounds, or in written form the letters representing those sounds, which constitute a label: this person is "John Doe". The name often reflects the parents’ desires for the child.

Identity change
Identity document
Identity theft, the deliberate appropriation of someone else's identity (without that person's permission) for criminal purposes
Personally identifiable information, information that can be used to uniquely identify, contact, or locate a single person
Personal development

Christian Identity, a Christian religious movement
Cultural identity, a person's self-affiliation (or categorization by others) as a member of a cultural group
Identity politics, political arguments that focus upon the self-interest and perspectives of social interest groups or minorities
National identity, belief in membership of a nationality

Identity element, a special element in a set or structure with respect to an operator
Identity function, a function that does not alter its argument
Identity (mathematics), an equality that holds regardless of the values of its variables
Identity matrix, a square matrix with ones on the main diagonal, zeros elsewhere

Accounting identity, calculation or measurement that must be true regardless of the value of its variables
Corporate identity, "persona" of a corporation by way of branding or use of trademarks
Brand identity, the qualities associated with a brand

Digital identity, representation of a set of claims made by one digital subject about itself or another digital subject
Federated identity, assembled identity of a person's user information, stored across multiple distinct identity management systems
Identity column, database field that uniquely identifies every row in the table and is made up of values generated by the database
Identity management, administrative area that deals with identifying individuals in a system and controlling access to resources by placing restrictions on them
Identity (object-oriented programming), the property of objects that distinguishes them from other objects
Online identity, social identity that an internet user establishes in online communities and websites

"Identity" (Sakanaction song), a 2010 song by Sakanaction
"Identity" (X-Ray Spex song), a single and song by X-Ray Spex, P. Styrene from the album Germfree Adolescents
"Identity", a 1983 song by Bucks Fizz. B-side to "London Town"

"Identity" (Charlie Jade), an episode of the television series Charlie Jade
Identity (TV series), a British police procedural drama television series
"Identity", an episode of the TV series Law & Order: Special Victims Unit
"Identity" (Burn Notice), second episode of the USA Network television drama series
Identity (film), directed by James Mangold and starring John Cusack
Identity (game show), a game show
"Identity" (Legend of the Seeker), an episode of Legend of the Seeker

Identity (video game), an upcoming MMORPG
Identity (novel), by Milan Kundera
iD eNTITY, a Korean style manhwa series created by Son Hee-joon, along with Kim Youn-kyung
Identity, a journal of the British National Party