St Mary Magdalen's Church is a Roman Catholic church in the Montpelier area of Brighton, part of the English city of Brighton and Hove. Dedicated to Jesus' companion Mary Magdalene, it is one of six Roman Catholic churches in Brighton and one of eleven in the city area. Built by ecclesiastical architect Gilbert Blount in a 13th-century Gothic style to serve the rapidly expanding residential area on the border of Brighton and Hove, it has been listed at Grade II by English Heritage in view of its architectural importance. An adjacent presbytery and parish hall have been listed separately at Grade II.