St Mary's Church is in the village of Walton, Cumbria, England.

[4][5] St Mary's is constructed in red sandstone on an ashlar chamfered plinth.

It has quoins, a string course, and slate roofs with coped gables, a cross finial, and decorative ridge tiles.

The plan consists of a four-bay nave, a north aisle, a three-bay chancel, and a tower incorporating a porch at the northwest.

The north side has a catslide roof extending from the ridge to the edge of the aisle.

[6] The age of the single-manual organ is not known, but it thought to have been built by Samuel Renn of Manchester.