Cantharus

Cantharus may refer to:


 * Cantharus (Christianity), a fountain used by Christians for making ablutions
 * Kantharos (also spelled cantharus), a Greek drinking cup
 * Kantharos (also spelled Cantharus), an ancient Athenian comic poet
 * Kantharos (also spelled Cantharus), a harbour in ancient Athens
 * Sea snails in the family Pisaniidae, including:
 * Cantharus, a genus of sea snails
 * Common cantharus (Gemophos auritulus)
 * Measle-mouth cantharus (Gemophos sanguinolentus)
 * Ringed cantharus (Gemophos ringens)
 * Tinted or painted cantharus (Gemophos tinctus)
 * Ribbed cantharus (Hesperisternia multangula)