Builth Wells Rugby Football Club is a Welsh rugby union team based in Builth Wells. Today, Builth Wells RFC play in the Welsh Rugby Union, Division One West League. Builth Wells RFC are a feeder club for Cardiff Blues.
The club badge shows a bull charging beneath a rugby post. Builth is thought to be a corruption of Llanfair Ym Muallt (buallt), meaning the Church of St. Mary in the Cow Pasture. The original bull was white.
The following players have represented Builth Wells and have been capped at international level.