O
- (Masisi Territory) Otalema
- (Masisi Territory) Otala
- (Masisi Territory) Osuke
- (Masisi Territory) Osuke
- (Masisi Territory) Osuke
- (Kabinda) Oyoleyole
- (Masisi Territory) Osongi Première
- (Masisi Territory) Osongi
- (Masisi Territory) Osombo
- (Masisi Territory) Osomba
- (Masisi Territory) Osoko
- (Masisi Territory) Osemaki
- (Masisi Territory) Oseki
- (Rutshuru Territory) Opienge
- (Masisi Territory) Opala-Moke
- (Masisi Territory) Opala