Michael Ensign (born February 13, 1944) is a British-American actor.

Born in Arizona to a Welsh/American family he was raised both in the USA and the UK. He trained as an actor at The London Academy of Music and Dramatic Art. He spent the first ten years of his professional career in the theatre in Britain. He was a member of the Royal Shakespeare Company from 1972 to 1975. He played the leading man (Donald) in the musical, 'Irene', at London's Adelphi Theatre in 1978. He appeared in the London productions of The Curse Of The Starving Class (Royal Court Theatre), The Red Devil Battery Sign (Phoenix Theatre) all in 1977 and numerous English Repertory Theatres.