Llancarfan is a rural village and community in the Vale of Glamorgan, Wales.

The village, located west of Barry and near Cowbridge, has a well-known parish church, the site of Saint Cadoc's 6th-century clas, famed for its learning.

Cainnech of Aghaboe, Caradoc of Llancarfan and many other Welsh holy men studied there.

The spacious church, which in the later Middle Ages belonged to Gloucester Abbey, contains a stoup and interesting remains of a rood screen, now adapted as a reredos.

[4] The community forms half of the Rhoose electoral ward for elections to the Vale of Glamorgan Council.