| St Mary, Hadleigh | |
| Pushpin Map: | Suffolk |
| Pushpin Label Position: | none |
| Pushpin Mapsize: | 220 |
| Map Caption: | Location in Suffolk |
| Coordinates: | 52.0435°N 0.9532°W |
| Location: | Hadleigh, Suffolk |
| Country: | England |
| Denomination: | Anglican |
| Founded Date: | c. 878–890 |
| Founder: | Guthrum (reputed) |
| Dedication: | Saint Mary |
| Status: | Parish church |
| Functional Status: | Active |
| Heritage Designation: | Grade I |
| Designated Date: | 26 April 1950 |
| Bells: | 8 |
| Deanery: | Hadleigh |
| Archdeaconry: | Ipswich |
| Diocese: | St Edmundsbury and Ipswich |
| Province: | Canterbury |
| Rector: | The Very Revd Jo Delfgou[1] |
| Website: | http://www.stmaryshadleigh.co.uk |
St Mary's is an Anglican church in Hadleigh, Suffolk. It is an active parish church in the Diocese of St Edmundsbury and Ipswich and the archdeaconry of Ipswich. Its earliest parts date from medieval times, the church is a Grade I listed building.
The church has a late 13th-century or early 14th-century tower and 14th-century aisles. The church was almost wholly reworked in the 15th century, when the arcades were rebuilt, and the clerestory, south porch and northeast vestry added. At this time also the whole building, except for the tower, was re-fenestrated. In the 19th century and early 20th century the church was extensively restored.
The church is constructed of flint rubble with stone dressings and has leaded roofs and spire. It has an aisled nave and chancel, a western tower, a two-storey south porch and a north vestry. On 26 April 1950 the church was designated a Grade I listed building. Its listing by Historic England records the principal reasons for designation as its size, the quality of its late-medieval architecture and its interior.