Pentwyn

Pentwyn (or Pen-twyn) may refer to the following places in south-east Wales:


 * Pentwyn, Cardiff, a district of the city of Cardiff
 * Pentwyn (electoral ward)
 * Pentwyn, Caerphilly, a village in the Darran Valley
 * Pen-twyn, Carmarthenshire, a hamlet near Cross Hands
 * Pentwyn, Focriw, a hamlet in Caerphilly, near Focriw
 * Pentwyn, Torfaen, a village near Abersychan
 * Pen-twyn, Trinant, a village in Caerphilly, near Trinant
 * Pentwyn Berthlwyd, a village in Merthyr Tydfil, near Treharris
 * Pentwyn Deintyr, village in Merthyr Tydfil
 * Pentwyn-mawr, village in Caerphilly, near Pontllanfraith