Marcia Barrett is a Jamaican-British singer and one of the original singers with the vocal group Boney M.

Boney M. are a disco group that specialises in R&B, reggae, disco and funk, created by German record producer Frank Farian, who was the group's primary songwriter. Originally based in West Germany, the four original members of the group's official line-up were Liz Mitchell and Marcia Barrett from Jamaica, Maizie Williams from Montserrat, and Bobby Farrell from Aruba. The group was formed in 1976 and achieved popularity during the disco era of the late 1970s. Since the 1980s, various line-ups of the band have performed with differing personnel.