Arlene Duncan is a Canadian singer/actress from Oakville, Ontario. Her father is African Canadian, with ancestors from Nova Scotia and her mother is West Indian. She is best known for her television role as Fatima, a diner owner in the CBC situation comedy Little Mosque on the Prairie.

Duncan was a winner of the Du Maurier's Search for Stars contest and represented Canada at the Pacific Song Contest in 1979. She won a Dora Mavor Moore Award in 2012 for Outstanding Performance by a Female (Musical) for her performance in Caroline, or Change.