Gavin Muir (September 8, 1900 – May 24, 1972) was an American film, television, and theatre actor.

[1] Muir's mother was American, and his father was Scottish.

Although he was born in Chicago, he was educated in England at the University College School.

[2] Muir's career included acting on Broadway through 1933.

His film career continued through 1965, often in character roles, and with a sort of specialty in villains with British accents.