Theatre of the Absurd, an artform utilizing the philosophy of absurdism

mathematics/logic: a statement that is clearly not correct, as in reductio ad absurdum

absurdity, with small "a", is a form of surreal humour

Absurdism, a philosophy born of existentialism

Absurd (band), a National Socialist Black Metal band.

Absurd (Fluke song), an electronic music single by the band Fluke