St Mary's Parish Church is a red brick gothic style Church of England parish church in the parish of Upton cum Chalvey in the borough of Slough and the county of Berkshire in England. Built between 1876-8 to a design by John Oldrid Scott and partly funded through a personal donation by Queen Victoria. it was again enlarged in 1911 - 1913, it is protected as a grade II* listed building. The grounds contain the grade II listed war memorial by the west door of the church, inscribed with over 300 names of the dead from Slough in the first and second world wars. The walls and gated of the church yard are also protected grade II listed features. The church is located centrally in the parish, serving the Slough town centre. The church is liked to two schools in the area, Saint Mary's Church of En