Dane Jeffrey Cook (born March 18, 1972) is an American stand-up comedian and film actor. He has released five comedy albums: Harmful If Swallowed; Retaliation; Vicious Circle; Rough Around The Edges: Live From Madison Square Garden; and Isolated Incident. In 2006, Retaliation became the highest charting comedy album in 28 years and went platinum. He performed an HBO special in the Fall of 2006, Vicious Circle, a straight-to-DVD special titled Rough Around The Edges (which is included in the album of the same name), and a Comedy Central special in 2009 titled Isolated Incident.

He is credited as one of the first comedians to use a personal webpage and MySpace to build a large fan base and in 2006 was described as "alarmingly popular". As an actor, Cook has appeared in films since 1997, including Mystery Men, Waiting..., Employee of the Month, Good Luck Chuck, Dan in Real Life, Mr. Brooks (in a non-comedic role), and My Best Friend's Girl.