Melanie Susan Appleby (11 July 1966 – 18 January 1990) was one half of the 1980s English duo Mel and Kim.

Appleby was born in Hackney, London to a Jamaican father and a white British mother. Appleby initially worked as a glamour model (in 1987 she did a photo shoot for Mayfair) and then joined her sister Kim Appleby to form Mel and Kim, enjoying considerable chart success during the mid and late 1980s.