Ant (born Anthony Steven Kalloniatis; August 23, 1967) is an American stand-up comedian and actor. He was born as 'Anthony Kalloniatis', but later legally changed his name to 'Ant' in 1993.

Ant was born Anthony Steven Kalloniatis on August 23, 1967, in Boston, Massachusetts. In 1993, he legally changed his name to 'Ant'.

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.

Ant appeared as a contestant on Last Comic Standing, competing in seasons two and three.

He was the host of VH1 reality series Celebrity Fit Club and was a regular judge of talent on Steve Harvey's Big Time. His television series U.S. of Ant premiered on MTV's gay-targeted Logo cable channel in the summer of 2006. Ant also frequently appeared as a commentator on shows such as VH1's Best Week Ever and CNBC's Dennis Miller, and was a regular guest on The Tyra Banks Show, The Tonight Show with Jay Leno as well as The Howard Stern Show.

In 2007, he appeared along with Snoop Dogg as a guest star on MTV's sketch comedy show Short Circuitz.

Ant appeared as a regular celebrity guest on the game show To Tell the Truth, alongside Jackée Harry, Meshach Taylor and John O'Hurley.