St Mary the Virgin's Church, Denby is a Grade I listed[1] parish church in the Church of England in Denby, Derbyshire.

It comprises a tower at the west end with a recessed broached spire, a clerestoried nave with a south aisle and a two-storey north aisle, a chancel and a south porch.

Alterations were made in 1838, and it was restored between 1901 and 1903 by John Oldrid Scott.

During the restoration part of the scaffolding collapsed in 1903 and one of the workmen, Job Seal of Horsley, was injured.

[3] The church is in a joint parish with The pipe organ dates from 1914 and was built by Harrison and Harrison.