Gladestry (Welsh: Llanfair Llythynwg) is a small village and community in Powys, mid Wales, close to the border with England at the end of the Hergest Ridge and south of the large moorland area of Radnor Forest.
The village is part of a thriving farming and agricultural community, and a local quarry. The village comprises a parish church, the Royal Oak pub, a primary school which educates around 50-60 children and a village hall. In the 2001 census the population of the community was 419, reducing slightly to 412 at the 2011 Census.
Offa's Dyke Path passes through the village and there are various footpaths and bridleways for walker, cyclist and horse rider.
The Grade II* listed 17th century manor house Baynham Hall is located in the hamlet of Michaelchurch-On-Arrow.
Coordinates: 52°11′N 3°08′W / 52.183°N 3.133°W