St Mary's Church or Our Lady of Reparation Church is a Catholic Parish church in Croydon. It was built from 1863 to 1864 and designed by E. W. Pugin and Frederick Walters. It is architecturally in the Gothic Revival style. It is situated to the north of the centre of Croydon on the junction of Wellesley Road and Station Road, next to St Mary's Roman Catholic High School, Croydon, but its parish extends to the west of the town.