| Coordinates: | 51.4875°N -3.502°W |
| Country: | Wales |
| Official Name: | Llangan |
| Welsh Name: | Llanganna |
| Community Wales: | Llangan |
| Unitary Wales: | Vale of Glamorgan |
| Lieutenancy Wales: | South Glamorgan |
| Constituency Westminster: | Vale of Glamorgan |
| Constituency Welsh Assembly: | Vale of Glamorgan |
| Post Town: | Bridgend |
| Postcode Area: | CF |
| Postcode District: | CF35 |
| Dial Code: | 01446 |
| Os Grid Reference: | SS958775 |
| Population: | 702 |
| Population Ref: | (2011)[1] |
| Static Image: | St Canna's Church, Llangan.JPG |
| Static Image Width: | 240px |
| Static Image Caption: | St Canna's Church, Llangan |
Llangan (Welsh: Llanganna) is a small village and community in the Vale of Glamorgan, Wales. It is located approximately 4miles outside the market town of Cowbridge. As a community it contains the settlements of St Mary Hill, Treoes and Llangan itself. It is in the historic county of Glamorgan.
Llangan became an important religious site in the late 18th century due to the work and preaching of its church's vicar David Jones, an early supporter of Calvinistic Methodism in Wales.[2]