St Donats should not be confused with Welsh St Donats.
| Country: | Wales |
| Welsh Name: | Sain Dunwyd |
| Official Name: | St Donats |
| Coordinates: | 51.4057°N -3.5306°W |
| Static Image: | St.Donat’s Village, Vale of Glamorgan.jpg |
| Static Image Width: | 260px |
| Static Image Caption: | St Donats village |
| Unitary Wales: | Vale of Glamorgan |
| Lieutenancy Wales: | South Glamorgan |
| Constituency Welsh Assembly: | Vale of Glamorgan |
| Constituency Westminster: | Vale of Glamorgan |
| Post Town: | Llantwit Major |
| Postcode District: | CF61 |
| Postcode Area: | CF |
| Dial Code: | 01446 |
| Population: | 732 |
| Population Ref: | (2011)[1] |
St Donats (Welsh: Sain Dunwyd) is a village and community in the Vale of Glamorgan in south Wales, located just west of the small town of Llantwit Major. The community includes the village of Marcross and the hamlets of Monknash and East and West Monkton. It is named after the 6th-century saint, Dunwyd, a friend of Saint Cadoc. It had a population of 732 in 2011.[2]
St Donat's church, dedicated to St Dunwyd, lies in a depression and is unremarkable from the exterior but contains Stradling family monuments in the Stradling chapel. It is a 12th-century Grade I listed building [3] with a Grade I listed medieval cross in the churchyard.[4]
The village is primarily known as the location of the 12th century St Donat's Castle, which is now an international boarding school occupied by Atlantic College, the first of the United World Colleges. Within the castle grounds lies St Donats Arts Centre.