Firkin

Firkin may refer to:
 * Firkin (unit), small cask used for liquids, butter, salt, and sometimes fish:
 * Firkin, a volume of beer; see English brewery cask units
 * Firkin Brewery, a chain of pubs in the United Kingdom
 * Firkin Roos, an Australian rules football team in Britain; see Earls Court Kangaroos
 * Firkin, NATO reporting name for the Sukhoi Su-47, a Russian experimental jet fighter