The Old Town Hall is a municipal building in Old Market Street, Usk, Monmouthshire, Wales. The structure, which is now used as the local club of the Royal British Legion, is a Grade II listed building.

Usk is a town and community in Monmouthshire, Wales, 10 miles (16 km) northeast of Newport. It is located on the River Usk, which is spanned by an arched stone bridge at the western entrance to the town. Usk Castle, above the town, overlooks the ancient crossing point. It developed as a small market town, with some industry including the making of Japanware, and with a notable prison built in 1841–42. In recent years Usk has become known for its history of success in Britain in Bloom competitions, winning the "Wales in Bloom" competition for 35 times in a row between 1982 and 2016. The resident population of the town in 2011 was 2,834, decreasing to roughly 2,600 in 2021. 6.8% of the population are recorded as being able to speak Welsh.