Chirk Castle () is a castle located at Chirk, Wrexham, Wales. The castle was built in 1295 by Roger Mortimer de Chirk, uncle of Roger Mortimer, 1st Earl of March as part of King Edward I's chain of fortresses across the north of Wales. It guards the entrance to the Ceiriog Valley. It was the administrative centre for the Marcher Lordship of Chirkland