Penllyn (Welsh: Pen-llin) is a village and community in the Vale of Glamorgan, Wales. It is located north west of the market town of Cowbridge. As a community it contains the settlements of Llansannor, Pentre Meryrick, Trerhingyll, Ystradowen and Penllyn itself.
Penllyn is home to Penllyn Castle, a 12th-century fortification which, although ruinous, is now adjoined by a castellated mansion originally built in the late 16th century.
- "Community population 2011". Retrieved 9 April 2015.
- Davies, John; Jenkins, Nigel; Menna, Baines; Lynch, Peredur I., eds. (2008). The Welsh Academy Encyclopaedia of Wales. Cardiff: University of Wales Press. p. 492. ISBN 978-0-7083-1953-6.
- "The Barley Mow Inn, a pub in Cowbridge, South Wales". cowbridgeguide.co.uk. Retrieved 30 September 2016.
- "Barley Mow, Craig Penllyn". whatpub.com. Retrieved 30 September 2016.