Llantwit Major (Welsh: Llanilltud Fawr) is a small coastal town and community in the Vale of Glamorgan, Wales, lying on the Bristol Channel coast. It is one of four towns in the Vale of Glamorgan and the third largest by population (13,366 (2001)) after Barry and Penarth, and ahead of Cowbridge, which lies about 4.5 miles (7.2 km) to the northeast. The town centre of Llantwit Major lies about 9 miles (14 km) southeast of the centre of Bridgend, 10 miles (16 km) west of the centre of Barry, and about 15 miles (24 km) miles south-west of the centre of the Welsh capital of Cardiff which lies further to the east beyond Barry.