Dyffryn

Dyffryn or Duffryn may refer to one of these places in Wales:

• Duffryn housing estate in Newport
• Dyffryn, Bridgend
• Dyffryn Cennen, Carmarthenshire
• Dyffryn, Ceredigion
• Dyffryn Cellwen, Neath Port Talbot
• Dyffryn Clydach, Neath Port Talbot
• Dyffryn, Pembrokeshire
• Dyffryn, Vale of Glamorgan
• Dyffryn Gardens