Identity control theory explains the nature of identities, and how people develop, maintain, and change the multiple identities they hold as role incumbents (e.g., father, student, truck‐driver), as group or social category members (e.g., member of a church, family, race or gender category), or as unique individuals (e.g., dominant, intellectual). This entry describes these different types of identities, the process of identity verification through which these identities are maintained or changed, as well as the consequences of the verification process for the individual and for society.