Trefriw is a village and community in Conwy County Borough, Wales. It lies on the river Crafnant a few miles south of the site of the Roman fort of Canovium, sited at Caerhun. At the last three censuses, the population of the community has been recorded as 842 in 1999, 915 in 2001, and 783 in 2011. Trefriw lies on the edge of Snowdonia, on the B5106 road to the north-west of Llanrwst, and about 4½ miles north of Betws-y-Coed by road.