| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Ōbara | city | Miyagi-ken | Japan | 38.325 | 141.4716667 | 288 | 18697 |
| Ōbayashi | city | Miyagi-ken | Japan | 38.7833333 | 141.0833333 | 101 | 37361 |
| Ōdori | city | Miyagi-ken | Japan | 38.8 | 140.9833333 | 196 | 37360 |
| Ōhama | city | Miyagi-ken | Japan | 38.5 | 141.5166667 | 180 | 15653 |
| Ōhara | city | Miyagi-ken | Japan | 38.325 | 141.4716667 | 288 | 18697 |
| Ōharahama | city | Miyagi-ken | Japan | 38.325 | 141.4716667 | 288 | 18697 |
| Ōhayashi | city | Miyagi-ken | Japan | 38.7833333 | 141.0833333 | 101 | 37361 |
| Ōhira | city | Miyagi-ken | Japan | 38.4544444 | 140.8736111 | 144 | 37569 |
| Ōkaizaki | city | Miyagi-ken | Japan | 38.7 | 141.2333333 | 131 | 37439 |
| Ōkamitsugi | city | Miyagi-ken | Japan | 38.65 | 141.1333333 | 88 | 37462 |
| Ōkawaguchi | city | Miyagi-ken | Japan | 38.735 | 140.8925 | 380 | 37419 |
| Ōkawara | city | Miyagi-ken | Japan | 38.05 | 140.7336111 | 209 | 37765 |
| Ōmagari | city | Miyagi-ken | Japan | 38.1666667 | 140.9 | 42 | 37104 |
| Ōsawa | city | Miyagi-ken | Japan | 38.8 | 141.5333333 | 13 | 30823 |
| Ōsawa | city | Miyagi-ken | Japan | 38.955 | 141.6333333 | 3 | 16915 |
| Ōsu | city | Miyagi-ken | Japan | 38.5166667 | 141.55 | 0 | 4944 |
| Ōsuhama | city | Miyagi-ken | Japan | 38.5166667 | 141.55 | 0 | 4944 |
| Ōta | city | Miyagi-ken | Japan | 38.7 | 141.0666667 | 173 | 37443 |
| Ōtori | city | Miyagi-ken | Japan | 38.8 | 140.9833333 | 196 | 37360 |
| Ōuchi | city | Miyagi-ken | Japan | 37.8666667 | 140.8333333 | 314 | 35851 |
| Ōumizaki | city | Miyagi-ken | Japan | 38.7 | 141.2333333 | 131 | 37439 |
| Ōya | city | Miyagi-ken | Japan | 38.8166667 | 141.5666667 | 16 | 20462 |
| Ōyanagi | city | Miyagi-ken | Japan | 38.5 | 141.1166667 | 36 | 37546 |
| Ōzashi | city | Miyagi-ken | Japan | 38.6 | 141.5166667 | 0 | 11495 |
|
|