| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oi-Kaigancho | city | Japan | 35.58 | 139.73 | 9 | 1100092 | |
| Oi-Kas-Kibek | city | Chuvashiya | Russia | 55.61 | 47.18 | 830 | 3144 |
| Oi-Kas-Yandoba | city | Chuvashiya | Russia | 55.68 | 47.01 | 331 | 2836 |
| Oi-Minamihamagawacho | city | Tokyo | Japan | 35.60 | 139.74 | 16 | 1011516 |
| Oi-chuo | city | Saitama | Japan | 35.86 | 139.51 | 72 | 425665 |
| Oi-dong | city | Gyeongbuk | Korea, Republic of (South) | 35.71 | 128.97 | 1089 | 7880 |
| Oi-dong | city | Gyeongbuk | Korea, Republic of (South) | 35.72 | 128.56 | 1095 | 30966 |
| Oi-gol | city | Gyeongbuk | Korea, Republic of (South) | 35.71 | 128.97 | 1089 | 7880 |
| Oi-law | city | Shan State | Burma | 23.47 | 97.44 | 4432 | 4343 |
| Oi-law | city | Shan State | Burma | 23.83 | 97.76 | 5157 | 6258 |
| Oi-ri | city | Korea, Dem. Peoples Rep. of (North) | 38.97 | 125.38 | 95 | 54117 |