Marmosets are New World monkeys in the genus Callithrix.
Marmoset may also refer to: Delacour's marmoset rat, a rodent Marmoset (band), an American indie rock band Marmoset (music agency), an American independent music agency Marmoset rat, a rodent Marmousets, counselors to Charles VI of France
See also Marmozets, an English math rock band