| Mount Mimongo | |
| Elevation M: | 860 |
| Range: | Chaillu Mountains |
| Country: | Gabon |
| Region Type: | Province |
| Region: | Ngounié |
| Map: | Gabon |
| Relief: | 1 |
| Label Position: | left |
| Coordinates: | -1.6475°N 11.7633°W |
Mount Mimongo (locally known as Mt Songo), with an elevation of 860m (2,820feet), is one of the higher mountains in the Chaillu Mountain Range in Gabon. The summit is situated east of the small town of Mimongo and within a few hours' walk from the village Dibandi. The region was first explored by Paul Du Chaillu between 1855 and 1865.
Pararistolochia incisiloba (Jongkind) M.E. Leal (Aristolochiaceae) is a plant species endemic to Mt Mimongo and also the only location on mainland Africa where Begonia thomeana C.DC. (Begoniaceae) is found, previously endemic to Sao Tome.