| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| 三ノ丸 | city | Akita | Japan | 40.27 | 140.56 | 252 | 25689 |
| 三ノ宮 | city | Kanagawa | Japan | 35.40 | 139.29 | 173 | 235555 |
| 三ノ沢 | city | Sakhalinskaya Oblast' | Russia | 46.70 | 142.74 | 144 | 1379 |
| 三ノ浜 | city | Miyagi | Japan | 38.88 | 141.61 | 0 | 29137 |
| 三ノ渡 | city | Akita | Japan | 40.11 | 140.46 | 830 | 5459 |
| 三ノ輪 | city | Tokyo | Japan | 35.73 | 139.79 | 16 | 1352461 |