Aberedw is a village and community in Radnorshire, Powys, Wales. The community covers an area of 3055 ha. Its population was 229, according to the 2011 census; a 4.57% increase since the 219 people noted in 2001. The 2011 census showed 4.8% of the population could speak Welsh, a fall from 11.2% in 2001. The ruins of the medieval Aberedw Castle are nearby. The village of Llanbadarn y Garreg is in the community. It is also the site of Llywelyn ap Gruffudd's death, commonly thought to have occurred in Cilmeri. The church of St Cewydd is a grade II* listed building.