| Norfolk Island(expression, name, volcano, geology) |
| Northern Tibet volcanic field(expression, name, volcano, geology) |
| Ojos de Maricunga(expression, name, volcano, geology) |
| Otago Harbour(expression, name, volcano, geology) |
| Pairique volcanic complex(expression, name, volcano, geology) |
| Pastillito(noun, name, volcano, geology) |
| Pearl and Hermes Atoll(expression, name, volcano, geology) |
| Pirurayo(noun, name, volcano, geology) |
| Piton des Neiges(expression, name, volcano, geology) |
| Poor Knights Islands(expression, name, volcano, geology) |
| Porco(noun, name, volcano, geology) |
| Porunita(noun, name, volcano, geology) |
| Pylon Peak(expression, name, volcano, geology) |
| Rainbow Range(expression, name, volcano, geology) |
| Ramadas Volcanic Centre(expression, name, volcano, geology) |
| Rincon volcanic complex(expression, name, volcano, geology) |
| Romeral(noun, name, volcano, geology) |
| Roque Cinchado(expression, name, volcano, geology) |
| Roque Nublo(expression, name, volcano, geology) |
| Roque de Garachico(expression, name, volcano, geology) |