| Mount Tukosmera | |
| Elevation M: | 1084 |
| Location: | Tanna, Vanuatu |
| Map: | Vanuatu |
| Coordinates: | -19.5764°N 169.3925°W |
| Coordinates Ref: | [1] |
| Age: | Pleistocene |
Mount Tukosmera is the tallest mountain on Tanna, Vanuatu. It is located in the southern part of the island. It was a volcano in the Pleistocene, but is no longer active, unlike Mount Yasur. The mountain has special religious significance for the adherents of the John Frum movement, as a place from which gods come.
A 6000ha tract of the upper slopes of the mountain has been recognised as an Important Bird Area (IBA) by BirdLife International because it contains a breeding site for a population of collared petrels.[2]