Chepstow is a town in Monmouthshire, Wales, adjoining the border with Gloucestershire, England. It is located on the River Wye, about 2 miles (3.2 km) above its confluence with the River Severn, and adjoining the western end of the Severn Bridge. It is 16 miles (26 km) east of Newport and 110 miles (180 km) west of London.