St. Mary the Virgin is a Grade I listed[1] parish church for Great Warley in the Brentwood borough of Essex, England.

It is noted for its unique Modern Style (British Art Nouveau style) interior, designed by Sir William Reynolds-Stephens.

Built in 1902 with money and land donated by the Heseltine family, and consecrated in 1904, the church is Grade I listed.

The churchyard contains a war grave of a Royal Army Ordnance Corps officer of World War II.

This article about a church or other Christian place of worship in England is a stub.