| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Porth | city | Rhondda Cynon Taf | United Kingdom | 51.61 | -3.40 | 406 | 47166 |
| Porth Arthur | city | Tasmania | Australia | -43.15 | 147.85 | 0 | 226 |
| Porth Bud | city | Cornwall | United Kingdom | 50.82 | -4.55 | 98 | 3223 |
| Porth Eynon | city | Swansea | United Kingdom | 51.55 | -4.21 | 0 | 5181 |
| Porth Ia | city | Cornwall | United Kingdom | 50.21 | -5.49 | 131 | 8862 |
| Porth Madryn | city | Chubut | Argentina | -42.77 | -65.04 | 0 | 26934 |
| Porth Tywyn | city | Carmarthenshire | United Kingdom | 51.69 | -4.24 | 36 | 25066 |
| Porth-y-rhyd | city | Carmarthenshire | United Kingdom | 52.02 | -3.88 | 830 | 0 |
| Portha | city | Chhattisgarh | India | 22.00 | 82.94 | 830 | 53466 |
| Portha | city | Chhattisgarh | India | 22.02 | 82.93 | 830 | 53238 |
| Porthaethwy | city | Gwynedd | United Kingdom | 53.22 | -4.15 | 265 | 10927 |
| Porthaethwy / Menai Bridge | city | Gwynedd | United Kingdom | 53.22 | -4.15 | 265 | 10927 |
| Porthallow | city | Cornwall | United Kingdom | 50.07 | -5.08 | 26 | 4975 |
| Portharcourtgbene | city | Bayelsa | Nigeria | 4.46 | 5.95 | 908 | 19325 |
| Porthbud | city | Cornwall | United Kingdom | 50.82 | -4.55 | 98 | 3223 |
| Porthcawl | city | Bridgend | United Kingdom | 51.48 | -3.71 | 3 | 19005 |
| Porthcurno | city | Cornwall | United Kingdom | 50.05 | -5.67 | 170 | 5316 |
| Porthcurnow | city | Cornwall | United Kingdom | 50.05 | -5.67 | 170 | 5316 |
| Porthenys | city | Cornwall | United Kingdom | 50.08 | -5.53 | 0 | 6023 |
| Porthgain | city | Sir Benfro | United Kingdom | 51.95 | -5.18 | 124 | 2376 |
| Porthill | city | Idaho | United States | 49.00 | -116.50 | 1797 | |
| Porthkerry | city | Bro Morgannwg | United Kingdom | 51.39 | -3.32 | 0 | 16623 |
| Porthleven | city | Cornwall | United Kingdom | 50.08 | -5.32 | 0 | 8688 |
| Porthloe | city | Cornwall | United Kingdom | 50.22 | -4.88 | 0 | 5165 |
| Porthlooe | city | Cornwall | United Kingdom | 50.22 | -4.88 | 0 | 5165 |
| Porthmadog | city | Gwynedd | United Kingdom | 52.93 | -4.12 | 3 | 3114 |
| Porthof | city | Nordrhein-Westfalen | Germany | 51.90 | 7.32 | 262 | 23925 |
| Porthpyra | city | Cornwall | United Kingdom | 50.33 | -4.52 | 0 | 1099 |
| Porthpyran | city | Cornwall | United Kingdom | 50.35 | -5.15 | 239 | 11839 |
| Porthscatho | city | Cornwall | United Kingdom | 50.18 | -4.98 | 3 | 5387 |
| Porthtowan Airfield | airport | 50.28 | -5.23 | 0 | |||
| Porthtreth | city | Cornwall | United Kingdom | 50.27 | -5.30 | 118 | 7203 |
| Porthynys | city | Cornwall | United Kingdom | 50.08 | -5.53 | 0 | 6023 |
| Porthyrhyd | city | Carmarthenshire | United Kingdom | 51.82 | -4.15 | 416 | 11415 |
| Porthysgewin | city | Sir Fynwy | United Kingdom | 51.59 | -2.72 | 3 | 30507 |