Llanelly (Welsh: Llanelli) is the name of both a village and its respective parish in Monmouthshire principal area, within the historic boundaries of Brecknockshire, south-east Wales.
The village is situated on a hillside above the Monmouthshire & Brecon Canal and the River Usk, some 4 miles west of Abergavenny. It is usually known as Llanelly Hill. The church [1] is dedicated to St. Elli.
The parish is part of the principal area of Monmouthshire, but before local government reorganisation in 1996, the village was in the district of Blaenau Gwent, but the electors overwhelmingly voted to be transferred out of it.
The Brecon Beacons National Park [2] encompasses the parish and the surrounding area.