Llandrindod Wells (Welsh: Llandrindod) is a town in Powys, traditional county of Radnorshire, mid Wales. It grew as a spa town, and is also home to a museum, a grotto and the National Cycle Exhibition . Notable buildings in the town include the Grand Pavilion .

The town is twinned with Contrexéville in France.

Llandrindod Wells is on the Heart of Wales railway line which runs between Swansea and Shrewsbury.