Benjamin Luke Cousins (born 30 June 1978 in Geelong, Victoria) is former professional Australian rules footballer for the West Coast Eagles in the Australian Football League. He played over 200 games for West Coast, with a reputation as one of the most decorated midfielders over the last decade, where he won a Brownlow Medal, a Leigh Matthews Trophy as MVP, four club Best & Fairest's, and six selections in the All-Australian team. He currently has just signed for Port Melbourne in the VFL.

Cousins' football career has been marred by several off-field incidents which have attracted considerable negative publicity. These incidents involved recreational drug use, requiring drug rehabilitation before he could take the field, a traffic conviction for avoiding a booze bus and associations with criminal elements which saw him several times almost expelled as a player by the club and league. The West Coast Eagles terminated his contract on October 17, 2007 after he had been arrested for alleged drug possession. Magistrate adjourns case and allows Eagle rehab trip October 18, 2007