Coven is an American rock band formed in Chicago in the late 1960s. They had a top 40 hit in 1971 with the song "One Tin Soldier", the theme song of the movie Billy Jack.

"One Tin Soldier" is a 1960s counterculture era anti-war song written by Dennis Lambert and Brian Potter. Canadian pop group The Original Caste first recorded it in 1969 for both the TA label and its parent Bell label.