Phyllis Byam Shand Allfrey (24 October 1908 – 4 February 1986) was a West Indian writer, socialist activist, newspaper editor and politician of the island of Dominica in the Caribbean. She is best known for her first novel, The Orchid House (1953), based on her own early life, which in 1991 was turned into a Channel 4 television miniseries of the same name in the United Kingdom.