Cefn may refer to:

• Cefn (community), in Wrexham county borough, Wales
  • Cefn Mawr, a large village in the community of Cefn
• Cefn Cribwr, a village in Bridgend county borough, Wales
• Cefn Fault, a geological fault in Wales
• Cefn Glas, an area of Bridgend, Wales
• Cefnllys or Cefn Llys, an abandoned ghost village, formerly a medieval castle town and borough, near Llandrindod Wells, Powys
  • Cefnllys Castle

• Cefn Druids A.F.C., a football club based in Cefn Mawr, playing in the Cymru Alliance.
• F.C. Cefn, a football club based in Cefn Mawr, playing in the Welsh National League (Wrexham Area) Premier Division

• Cefn quarry, a slate quarry near Cilgerran, Wales

This disambiguation page lists articles associated with the title Cefn.
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