Abergavenny (/ˌæbərɡəˈvɛni/; Welsh: Y Fenni, pronounced [ə ˈvɛnɪ], archaically Abergafenni, 'mouth of the River Gavenny') is a market town and community in Monmouthshire, Wales. Abergavenny is promoted as a "Gateway to Wales"; it is approximately 6 miles (10 km) from the border with England and is located where the A40 trunk road and the recently upgraded A465 Heads of the Valleys road meet.
Originally the site of a Roman fort, Gobannium, it became a medieval walled town within the Welsh Marches. The town contains the remains of a medieval stone castle built soon after the Norman conquest of Wales.