St Mary's Church is in the West Bank area of Widnes, Cheshire, England.

[1] It is an active Anglican parish church in the diocese of Liverpool, the archdeaconry of Warrington and the deanery of Widnes.

[6] The church was designed by Austin and Paley, cost £16,669 in total (equivalent to £2,150,000 in 2023),[7] which included £5,400 for the site, and provided seating for 770 people.

[8] The church is built in red flecked sandstone, and the nave roof is in Ruabon tiles.

[1] An inscribed frieze of the Te Deum runs around the tower and below the parapet of the south and east sides of the church.

The stained glass in the east window depicts the Ascension and an Apocalyptic Vision and was designed by Shrigley and Hunt.