Ucrânia
Países do mundo
O
- (Mykolayiv urban raion) Olshanske
- Ol'shanskoye
- (Lubny Raion) Orzhytsya
- (Ternopil Raion) Ozerna
- Ozërnaya
- (Haysyn Raion) Obodivka
- (Iziumska Miskrada) Oskil
- (Luts’ka Mis’krada) Olyka
- Orikhove
- (Izmail Raion) Orlivka
- (Ivano-Frankivskyi Raion) Obertyn
- Orativ
- (Feodosiiskyi Raion) Ordzhonikidze
- Ordzhonikidze
- (Podilsk Raion) Osychky
- (Bolhrad Raion) Oleksandrivka
- (Bolhrad Raion) Orikhivka
- (Chernivestkyi Raion) Orshivtsi
- (Uzhhorod Raion) Onokivtsi
- (Chernivestkyi Raion) Oshykhliby
- (Bilhorod-Dnistrovskyy Raion) Oleksandrivka
- (Chernihiv Raion) Olyshivka
- Olishëvka
- (Bilhorod-Dnistrovskyy Raion) Oleksiivka
- Olenevka
- (Zolochivskyi Raion) Olesko
- (Bashtanka Raion) Oleksandrivka
- (Izmail Raion) Ostrivne
- (Dnistrovskyi Raion) Oleksiyvka
- (Dnistrovskyi Raion) Ozheve