Anthony Steven Kalloniatis (born August 23, 1967), known by his stage name Ant, is an American stand-up comedian, actor, and TV show host.

Ant performed at comedy clubs across the US beginning in 1991. In 1995, he was a semi-regular cast member on the WB series Unhappily Ever After, spending four seasons on the sitcom. He appeared as a contestant on Last Comic Standing, competing in seasons two and three.