From Canada, Hampshire to all cities in Gwent starting with letter U
- Underwood, Hampshire
- Undy, Hampshire
- Upper Coedcae, Hampshire
- Upper Common, Hampshire
- Upper Cwmbran, Hampshire
- Upper Fedw, Hampshire
- Upper Ochrwyth, Hampshire
- Upper Race, Hampshire
- Upper Redbrook, Hampshire
- Usk, Hampshire
- Uskmouth, Hampshire