Monkswood (Welsh: Coed y Mynach) is a village in Monmouthshire, south east Wales, United Kingdom.
It lies parallel to the Berthon Brook, a minor tributary of the River Usk.
Monkswood derives its name from the area of land farmed by monks from Usk in medieval times.
After a battle near Usk, the Battle of Pwll Melyn, during the Owain Glyndŵr rebellion in the early 15th century the Welsh forces were pursued across the River Usk and through Monkswood where many were slaughtered.
BAE Systems, Glascoed, the UK's sole munitions filling and packing facility, is hidden in a wooded valley nearby and to the south of the A472 road.