Nonce may refer to:
Cryptographic nonce, a number or bit string used only once, in security engineering
Nonce word, a word used to meet a need that is not expected to recur
The Nonce, American rap duo
Nonce orders, an architectural term
Nonce, a slang term chiefly used in Britain for alleged or convicted sex offenders, especially ones involving children
Nuncio, the apostolic and diplomatic representation of the Holy See
Hapax legomenon, in corpus linguistics
