Wonastow (Welsh: Llanwarw) is a village in Monmouthshire, south east Wales, United Kingdom.
Wonastow is located two miles south west of Monmouth.
Wonastow has a twelfth century church [1] dedicated to St. Wonnow or Saint Winwaloe, believed to have been built on a seventh century religious site. Monmouth's Wonastow Road industrial estate is located nearby.