Bluet or bluets may refer to:

Centaurea, a plant genus in the family Asteraceae Centaurea cyanus, one of its many common names Centaurea montana, particularly as mountain bluet though also without the distinction Several plant genera in the family Rubiaceae, notably: Houstonia Oldenlandiopsis or "creeping bluet" Some damselfly genera in the family Coenagrionidae: Enallagma Coenagrion Bluets (poetry collection), a collection of poetry by Maggie Nelson

See also Blewitt (disambiguation)