Christoph Willibald Gluck (1714–1787) was a composer of Italian and French opera.

Gluck may also refer to: Gluck (surname) 7624 Gluck, a main-belt asteroid Gluck (card game) Gluck (crater), a crater on Mercury Gluck (painter) (1895–1978), British painter (birth name Hannah Gluckstein)

See also Glück (surname).