| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Ō-utori | city | Sakhalinskaya Oblast' | Russia | 48.8 | 142.9166667 | 0 | 260 |
| Ōboe | city | Sakhalinskaya Oblast' | Russia | 46.2 | 142.25 | 0 | 357 |
| Ōhira | city | Sakhalinskaya Oblast' | Russia | 49.1166667 | 142.15 | 59 | 537 |
| Ōhodomari | city | Sakhalinskaya Oblast' | Russia | 46.8916667 | 141.9836111 | 610 | 380 |
| Ōhoe | city | Sakhalinskaya Oblast' | Russia | 46.2 | 142.25 | 0 | 357 |
| Ōhoi | city | Sakhalinskaya Oblast' | Russia | 46.2 | 142.25 | 0 | 357 |
| Ōhotomari | city | Sakhalinskaya Oblast' | Russia | 46.8916667 | 141.9836111 | 610 | 380 |
| Ōki | city | Sakhalinskaya Oblast' | Russia | 49.35 | 142.8833333 | 275 | 243 |
| Ōmagari | city | Sakhalinskaya Oblast' | Russia | 47.0333333 | 142.4333333 | 1174 | 843 |
| Ōmagari-ekiteisho | city | Sakhalinskaya Oblast' | Russia | 47.0333333 | 142.4333333 | 1174 | 843 |
| Ōsaka | city | Sakhalinskaya Oblast' | Russia | 47.0147222 | 142.2738889 | 521 | 761 |
| Ōsaka | city | Sakhalinskaya Oblast' | Russia | 47.7833333 | 142.2833333 | 761 | 434 |
| Ōsakae | city | Sakhalinskaya Oblast' | Russia | 47.7833333 | 142.2833333 | 761 | 434 |
| Ōsawa | city | Sakhalinskaya Oblast' | Russia | 46.9194444 | 142.7366667 | 108 | 8820 |
| Ōtani | city | Sakhalinskaya Oblast' | Russia | 47.2333333 | 142.75 | 98 | 1042 |
| Ōte | city | Sakhalinskaya Oblast' | Russia | 47.6630556 | 142.055556 | 570 | 484 |
| Ōtomari | city | Sakhalinskaya Oblast' | Russia | 46.6363889 | 142.7794444 | 49 | 4426 |
| Ōtomari | city | Sakhalinskaya Oblast' | Russia | 49.3955556 | 154.8191667 | 98 | 79 |
| Ōtoyo | city | Sakhalinskaya Oblast' | Russia | 46.7833333 | 142.4 | 121 | 1446 |
| Ōwake | city | Sakhalinskaya Oblast' | Russia | 46.9619444 | 142.7008333 | 59 | 5515 |
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