Gemena is the capital of the district of South Ubangi in the northwest of the Democratic Republic of Congo. According to a calculation in 2010 is the population of the city 132 971. Gemena has a large domestic airport, which connects the city with other places within the country.

The mother of the late dictator Mobutu Sese Seko, Mama Yemo died 1971 in Gemena, so there you a large mausoleum was erected in honor.

2007, a brigade of the Congolese armed forces ( FARDC ) was stationed in the city.