O
- (Chervonohradskyi Raion) Ol’khovoye
- (Sambirs’ka Mis’krada) Orkhovychi
- (Chervonohradskyi Raion) Ordiv
- (Chervonohradskyi Raion) Opilsko
- (Drohobytskyi Raion) Opory
- (Stryys’ka Mis’krada) Oporets
- (Chervonohradskyi Raion) Oplitsko
- (Zolochivskyi Raion) Opaky
- (Drohobytskyi Raion) Opaka
- (Yavorivskyi Raion) Ol’shanitsa
- (Zolochivskyi Raion) Oll’niki
- (Lvivskyi Raion) Odynoke
- (Lvivskyi Raion) Ol’khovets
- (Sambirs’ka Mis’krada) Olekseta
- (Lvivskyi Raion) Okulki
- (Chervonohradskyi Raion) Ohliadiv
- (Lvivskyi Raion) Obydiv
- (Stryys’ka Mis’krada) Oblaznytsia
- (Zolochivskyi Raion) Oberlyasuv
- (Stryys’ka Mis’krada) Oriavchyk
- (Chervonohradskyi Raion) Obortiv
- (Drohobytskyi Raion) Ortynychi
- (Stryys’ka Mis’krada) Oleksychi
- (Lvivskyi Raion) Oplitna
- (Zolochivskyi Raion) Ozyndzylyuki
- (Zolochivskyi Raion) Ozhydiv
- (Stryys’ka Mis’krada) Otynevychi
- (Chervonohradskyi Raion) Ostriv
- (Zolochivskyi Raion) Ostruv
- (Lvivskyi Raion) Ostruv