Llanellen (Welsh: Llanelen) is a village in Monmouthshire, south-east Wales, United Kingdom.

The River Usk passes close by, crossed by a bridge built in 1821 by John Upton,[2] who also built the nearby Pant-y-Goitre Bridge.

The Monmouthshire and Brecon Canal passes through Llanellen.

The church of St Helen possibly dates back to the 13th century, though the church was largely re-built in Perpendicular style in the mid-19th century by architect John Prichard.

[3] In the churchyard is the grave of Sir Thomas Phillips, Mayor of Newport at the time of the Newport Rising in 1839, and a prominent defender of Welsh language and education,[4] who lived in nearby Llanellen House.