| Toh(noun, name, volcano, geology) |
| Tokachidake(noun, name, volcano, geology) |
| Tolbachik(noun, name, volcano, geology) |
| Tolhuaca(noun, name, volcano, geology) |
| Tolima(noun, name, volcano, geology) |
| Toliman(noun, name, volcano, geology) |
| Tolmachev Dol(expression, name, volcano, geology, history) |
| Toluca(noun, name, volcano, geology) |
| Tomariyama(noun, name, volcano, geology) |
| Tombel Graben(expression, name, volcano, geology, history) |
| Tondano Caldera(expression, name, volcano, geology, history) |
| Toney Mountain(expression, name, volcano, geology, history) |
| Tonga Islands(expression, name, volcano, geology, history) |
| Tongariro(noun, name, volcano, geology) |
| Tore(noun, name, volcano, geology) |
| Torfajokull(noun, name, volcano, geology) |
| Toroeng Prong(expression, name, volcano, geology, history) |
| Tortuga(noun, name, volcano, geology) |
| Tosa Sucha(expression, name, volcano, geology, history) |
| Toshima(noun, name, volcano, geology) |