Gemena is the capital city of Sud-Ubangi Province in the Democratic Republic of the Congo. It has a population of 350,511 (2017). The city has a large airport and hosts the 10th integrated Brigade of the new FARDC since 2007.
Mobutu Sese Seko's mother, Mama Yemo, died in Gemena in 1971; a vast mausoleum was built in her memory.