| Lauca(noun, name, volcano, geology) |
| Laysan(noun, name, volcano, geology) |
| Leon Muerto(expression, name, volcano, geology) |
| Level Mountain(expression, name, volcano, geology) |
| Level Mountain Range(expression, name, volcano, geology) |
| Lisianski Island(expression, name, volcano, geology) |
| Lone Butte(expression, name, volcano, geology) |
| Lord Howe Island(expression, name, volcano, geology) |
| Los Colorados(expression, name, volcano, geology) |
| Luingo(noun, name, volcano, geology) |
| Lyttelton Harbour(expression, name, volcano, geology) |
| Macusani(noun, name, volcano, geology) |
| Manus Island(expression, name, volcano, geology) |
| Maro Reef(expression, name, volcano, geology) |
| Marysvale volcanic field(expression, name, volcano, geology) |
| Millunu(noun, name, volcano, geology) |
| Morococala(noun, name, volcano, geology) |
| Mount Bursey(expression, name, volcano, geology) |
| Mount Edziza volcanic complex(expression, name, volcano, geology) |
| Mount Haddington(expression, name, volcano, geology) |