| Tønnesen Glacier | |
| Map: | Antarctica |
| Mark: | Blue_pog.svg |
| Location: | Queen Maud Land |
| Coordinates: | -72.0667°N 31°W |
| Thickness: | unknown |
| Status: | unknown |
Tønnesen Glacier (-72.0667°N 31°W) is a broad glacier flowing north between Risemedet Mountain and Festninga Mountain, separating the Gjelsvik Mountains and the Mühlig-Hofmann Mountains in Queen Maud Land. It was mapped by Norwegian cartographers from surveys and air photos by the Norwegian Antarctic Expedition (1956–60) and named for J. Tønnesen, a meteorologist with the expedition.[1]