Ultimate Force is a British television action drama series that was shown on ITV, which deals with the activities of Red Troop of the SAS (Special Air Service). The first episode was broadcast on 16 September 2002, and a total of four series were produced. The series starred Ross Kemp as central character Staff Sergeant Henry 'Henno' Garvie. The show was initially described as a star vehicle for Kemp, who had been lured away from the BBC to ITV with a multimillion-pound contract. Kemp appeared in every episode of the four series.

The series was co-created by Chris Ryan, a former British SAS soldier who was a member of the famous Bravo Two Zero patrol during the 1991 Gulf War. The series was produced by Bentley Productions.