A subculture is a set of people with distinct behavior and beliefs within a larger culture.

A culture often contains numerous subcultures. Subcultures incorporate large parts of their mother cultures, but in specific instances they may differ radically. Some subcultures achieve such a status that they acquire a name of their own.

Examples include:

Subcultures often have their own slang and jargon, see polari and argot.

See also:

Fiction: in the movie The Outsiders there are the Socs (rich teenagers) and Greasers (poor ones), named after the grease in their hair. In Grease (musical) and the song 4th Of July, Asbury Park (Sandy) the same term is used.

Biology: A subculture in a population of a microorganism is when one microbe colony in such a population is transfered onto blank growth medium and allowed to freely reproduce.