O
- (Novoukrayinka Raion) Ositnaya
- (Oleksandriya Raion) Oliivka
- (Kropyvnytskyy Raion) Oleksandrivka
- (Kropyvnytskyy Raion) Oleksiivka
- (Kropyvnytskyy Raion) Oleksiivka
- (Kropyvnytskyy Raion) Omelhorod
- (Kropyvnytskyy Raion) Oboznivka
- (Oleksandriya Raion) Oktyabr’skoye
- (Oleksandriya Raion) Omelnyk
- (Kropyvnytskyy Raion) Osikovata
- (Oleksandriya Raion) Omelianivka
- (Kropyvnytskyy Raion) Osytniazhka
- (Novoukrayinka Raion) Osytniazhka
- (Oleksandriya Raion) Ovrahove
- (Kropyvnytskyy Raion) Ovsianykivka
- (Kropyvnytskyy Raion) Oleno-Kosogorovka
- (Oleksandriya Raion) Olimpiadivka
- (Oleksandriya Raion) Oleksandro-Stepanivka
- (Oleksandriya Raion) Ozera
- (Oleksandriya Raion) Oleksandro-Pashchenkove
- (Oleksandriya Raion) Oleksandriyske