| Bannau Sir Gaer | Carmarthenshire peaks |
| Cadair Arthur | Arthur’s chair |
| Carreg Cennen | rock by river Cennen (which itself may derive from ‘cen’ meaning lichen) |
| Corn Du | black stack or black horn? |
| Cribarth | crest of mountain ridge |
| Disgwylfa | watching place |
| Fan Fawr | big peak |
| Fan Frynych | Brynych’s peak |
| Fan Gyhirych | braided peak (probably named after the Nant Gyhirych meaning ‘braided stream’ – which makes more sense) |
| Fan Hir | long peak |
| Fan Llia | peak taking its name from the river (Llia) which itself may derive from ‘lick’ or ‘lap’ |
| Fan Nedd | peak taking its name from the river (Nedd) whose meaning is unknown but probably similar to R. Nidd of Yorkshire |
| Fforest Fach | little (hunting) forest |
| Fforest Fawr | great (hunting) forest |
| Y Mynydd Du | the black mountain |
| Mynydd Illtud | St Illtud’s mountain |
| Pen y Crug | top of the hillock |
| Pen y Fan | top of the peak |
| Tair Carn Uchaf | upper three cairns |
| Trichrug | three tumuli / mounds |
| Twyn y Gaer | mound of the fortress |
