O
- (Khmelnytskyy Raion) Orlintsy
- (Shepetivka Raion) Orlyntsi
- (Khmelnytskyy Raion) Ohiivtsi
- (Khmelnytskyy Raion) Okhrimivtsi
- (Shepetivka Raion) Okniny
- (Shepetivka Raion) Okop
- (Khmelnytskyy Raion) Oleshyn
- (Khmelnytskyy Raion) Oliinyky
- (Shepetivka Raion) Onatskivtsi
- (Shepetivka Raion) Onyshkivtsi
- (Khmelnytskyy Raion) Ordintsy
- (Kamyanets-Podilskyy Raion) Orynyn
- (Khmelnytskyy Raion) Orikhivka
- (Khmelnytskyy Raion) Oslamiv
- (Khmelnytskyy Raion) Ostapkivtsi
- (Khmelnytskyy Raion) Ostashky
- (Kamyanets-Podilskyy Raion) Ostoya
- (Kamyanets-Podilskyy Raion) Ostrovchany
- (Khmelnytskyy Raion) Ostrovka
- (Kamyanets-Podilskyy Raion) Otrokiv
- (Khmelnytskyy Raion) Ozharivka
- (Khmelnytskyy Raion) Ozhigovtsy
- (Khmelnytskyy Raion) Oleshkivtsi