Cilcennin is a village in the community of Ciliau Aeron, Ceredigion, west Wales.

The River Aeron is to the southwest.

Cilcennin is the site of a historic slaughter in 1210, when Owain Goch ap Gruffydd and three hundred men attacked and killed soldiers from a superior English and Welsh troops' body under the command of their uncle Maelgwn ap Rhys.

[1] The church in Cilcennin is dedicated to St. Cannen, and was rebuilt in the 19th century through public contributions.

This Ceredigion location article is a stub.