Trefriw (Welsh pronunciation: [trɛˈvrɪu]) is a village and community in Conwy County Borough, Wales. It lies on the river Crafnant in North Wales, a few miles south of the site of the Roman fort of Canovium, sited at Caerhun. At the 2001 census, the community had a population of 924, reducing to 783 at the 2011 census.