Negation is a connective in logic and an operation computing that maps true to false and false to true.

Negation may also refer to:

Negation (linguistics), a grammatical operation by which a proposition is replaced by one that states the opposite, as by the addition of not Negation (comics), a CrossGen comic The Negation, a 2004 album by the Polish metal band Decapitated Negation (poem), a 1918 poem by Wallace Stevens Negation (algebra), negation proper in various algebraic structures Negation (arithmetic), the act of forming the additive inverse of a number in arithmetic

See also Negative (disambiguation)