There is one place named Doumba in Congo.
All places in the world called "Doumba".
Mbaya (6)Mbomo (5)Kongo (4)Yanga (4)Yama (4)Mboma (4)Nkoua (4)Lékana (4)Dzanga (4)Mbaka (4)Pangala (3)Kouni (3)Mpe (3)Ngolé (3)Okouma (3)Otala (3)Boka (3)Kayes (3)Mbama (3)Mboulou (3)Baya (3)Manda (3)Mpaka (3)Oka (3)Dziba (3)Bondo (3)Impo (3)Kibangou (3)Madingou (3)Kenge (3)