| Wilis(noun, name, volcano, geology) |
| Williams Cone(expression, name, volcano, geology, history) |
| Witori(noun, name, volcano, geology) |
| Wolf(noun, name, volcano, geology) |
| Wrangell(noun, name, volcano, geology) |
| Wright(noun, name, volcano, geology) |
| Wudalianchi(noun, name, volcano, geology) |
| Wurlali(noun, name, volcano, geology) |
| Yakedake(noun, name, volcano, geology) |
| Yali(noun, name, volcano, geology) |
| Yangudi(noun, name, volcano, geology) |
| Yantarni(noun, name, volcano, geology) |
| Yanteles(noun, name, volcano, geology) |
| Yar(noun, name, volcano, geology) |
| Yasur(noun, name, volcano, geology) |
| Yate(noun, name, volcano, geology) |
| Yavinsky(noun, name, volcano, geology) |
| Yelia(noun, name, volcano, geology) |
| Yellowstone(noun, name, volcano, geology) |
| Yelovsky(noun, name, volcano, geology) |