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.

St Mary the Virgin, Great Warley
Location	Great Warley, Essex
Country	England
Denomination	Church of England
History
Status	Active
Consecrated	1904
Architecture
Functional status	Parish church
Heritage designation	Grade I listed
Architect(s)	Charles Harrison Townsend
Administration
Diocese	Diocese of Chelmsford
Episcopal area	Bradwell Episcopal Area
Archdeaconry	Archdeaconry of Chelmsford
Deanery	Deanery of Brentwood
Parish	Great Warley
Clergy
Priest in charge	The Revd Robert Binks
Curate(s)	The Revd Adrian McConnaughie

Built in 1902 with money and land donated by the Heseltine family, and consecrated in 1904, the church is Grade I listed. The architect was Charles Harrison Townsend.

The churchyard contains a war grave of a Royal Army Ordnance Corps officer of World War II.^[2]