O
Ō
- (Aso-gun) Ōtsuru
- (Amakusa Shi) Ōta
- (Amakusa Shi) Ōfurue
- (Amakusa Shi) Ōtomo
- (Amakusa Shi) Ōnoura
- (Amakusa Shi) Ōno
- (Amakusa Shi) Ōmaru
- (Amakusa Shi) Ōkawachi
- (Amakusa Shi) Ōno
- (Amakusa Shi) Ōe-nishibira
- (Amakusa Shi) Ōkawachi
- (Amakusa Shi) Ōtao
- (Amakusa Shi) Ōmiya
- (Amakusa Shi) Ōbuchi
- (Amakusa Shi) Ōtamachi
- (Amakusa Shi) Ōsako
- (Amakusa Shi) Ōchi
- (Amakusa Shi) Ōbayashi
- (Amakusa Shi) Ōmon