Llangua (Welsh: Llangiwa) is a small village in Grosmont community, Monmouthshire, south-east Wales, United Kingdom.
Saint Ciwa is said to have built a church there in the 7th century.
Llangua is located nine miles north-east of Abergavenny on the A465 road.
Llangua sits just inside the border with England on the Welsh bank of the River Monnow.
This article relating to a location in Monmouthshire is a stub.