Mayda (variously known as Maida, Mayd, Mayde, Brazir, Mam, Asmaida, Asmayda, Bentusle, Bolunda and Vlaanderen) is a non-existent island in the North Atlantic that has been shown on several published maps at various points in history. It was most often represented as being crescent-shaped and its position has varied widely over time. Early maps drew the island west of Brittany and southwest of Ireland, but it later moved towards the Americas (Newfoundland, Bermuda, West Indies).