Belinda Sinclair (born 16 September 1950) is a British actress widely known for several recurring television roles.
She was born in London, trained as an actor with the Arts Educational Schools, London and had early success on the stage. In the original stage run of The Rocky Horror Show, after the original actor portraying Janet, Julie Covington, was badly injured in an accident and had to leave the production. Sinclair took over the role, and is featured on the original cast recording. She also appeared in Hair.
Later Sinclair had several high-profile on-going television roles. Among these are Shelley (1979), in which she appeared alongside Hywel Bennett, and more recently the part of Fern Farmer in five's soap opera Family Affairs. She played the role of Fern Farmer from 1999 to Autumn 2003 when her character was killed in a car accident.