St Mary's Church is in the village of Allithwaite, Cumbria, England. It is an active Anglican parish church in the deanery of Windermere, the archdeacon of Westmorland and Furness, and the diocese of Carlisle. Its benefice is united with those of St Mary and St Michael, Cartmel, St Peter, Field Broughton, St John the Baptist, Flookburgh, St Paul, Grange-over-Sands, Grange Fell Church, Grange-Over-Sands, and St Paul, Lindale to form the benefice of Cartmel Peninsula. The church is recorded in the National Heritage List for England as a designated Grade II listed building.

Allithwaite is a village in Cumbria, England, located roughly 1.2 miles (1.9 km) west of Grange-over-Sands. Within the boundaries of the historic county of Lancashire, Allithwaite, and the village of Cartmel situated to the north, are part of the civil parish of Lower Allithwaite. At the 2001 census, the parish had a population of 1,758, increasing to 1,831 at the 2011 Census.