Llanelwedd ([ɬanˈɛlwɛð]) is a village and community near Builth Wells, in Powys, Wales.

Llanelwedd is on the right bank of the Wye concentrated immediately north of Builth Wells.

Being more populous, Builth dominates in the general perception of the area, and Llanelwedd's main network of streets can be perceived as part of the town rather than its own village.

The local stone is suitable for various uses, and the Llanelwedd Quarries dominate the landscape on the north-east side of the village.

[4] Llanelwedd is the site of the Royal Welsh Showground, which hosts a number of attractions during the year as well as the show.