Circulus may refer to: * ''Circulus'' (album), 1970, by Chick Corea *

Circulus (band) Circulus are a psychedelic folk/progressive rock band from South London, England, founded by vocalist Michael Tyack. The band uses a mix of modern and medieval instruments, such as the lute, cittern, crumhorn and rauschpfeife, along with the ...

, a British psychedelic folk and progressive rock band * ''Circulus'' (gastropod), a genus of sea snails *

Circulus (theory) Circulus was a socioeconomics doctrine devised by nineteenth-century French utopian socialist Pierre Leroux (1797–1871), who proposed that human excrement be collected by the state in the form of a tax and used as fertiliser, thereby increasing a ...

, a socioeconomics doctrine *

Circulus (zoology) A circulus is a rarely occurring reptilian social group where there is interaction and personal exchange between individuals. Members will often protect and defend young, even if not of direct genetic linkage. ''Circulus'' is a Latin based term; ...

, a type of reptilian social group

See also