| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Oinaankyla | city | Lapin Laani | Finland | 66.8833333 | 27.4833333 | 528 | 186 |
| Oinaankylä | city | Lapin Laani | Finland | 66.8833333 | 27.4833333 | 528 | 186 |
| Oinas | city | Lapin Laani | Finland | 66.8833333 | 27.4833333 | 528 | 186 |
| Oinas | city | Lapin Laani | Finland | 67.05 | 27.5333333 | 551 | 50 |
| Ojaniemi | city | Lapin Laani | Finland | 66.3333333 | 27.05 | 449 | 168 |
| Ollila | city | Lapin Laani | Finland | 69.6333333 | 27.0666667 | 446 | 14 |
| Onkalo | city | Lapin Laani | Finland | 65.6166667 | 25.0666667 | 39 | 90 |
| Onkamo | city | Lapin Laani | Finland | 66.75 | 29.1 | 980 | 60 |
| Onkamojarvi | city | Lapin Laani | Finland | 66.75 | 29.1 | 980 | 60 |
| Onkamojärvi | city | Lapin Laani | Finland | 66.75 | 29.1 | 980 | 60 |
| Onnela | city | Lapin Laani | Finland | 67.45 | 26.8666667 | 629 | 56 |
| Onnela | city | Lapin Laani | Finland | 65.8 | 26.9166667 | 587 | 98 |
| Onnela | city | Lapin Laani | Finland | 69.9 | 27.0333333 | 656 | 21 |
| Onnela | city | Lapin Laani | Finland | 68.9666667 | 28.1166667 | 436 | 16 |
| Orajarvi | city | Lapin Laani | Finland | 66.8833333 | 24.1 | 725 | 173 |
| Orajarvi | city | Lapin Laani | Finland | 67.35 | 26.85 | 610 | 56 |
| Orajärvi | city | Lapin Laani | Finland | 66.8833333 | 24.1 | 725 | 173 |
| Orajärvi | city | Lapin Laani | Finland | 67.35 | 26.85 | 610 | 56 |
| Orakyla | city | Lapin Laani | Finland | 67.35 | 26.85 | 610 | 56 |
| Orakylä | city | Lapin Laani | Finland | 67.35 | 26.85 | 610 | 56 |
| Osma | city | Lapin Laani | Finland | 67.05 | 25.6 | 731 | 153 |
| Oulanka | city | Lapin Laani | Finland | 66.45 | 29 | 826 | 135 |
| Ounasjoki | city | Lapin Laani | Finland | 66.8333333 | 25.4166667 | 390 | 159 |
| Outakoski | city | Lapin Laani | Finland | 69.6 | 25.9666667 | 656 | 16 |
| Outokoskenkoulo | city | Lapin Laani | Finland | 69.6 | 25.9666667 | 656 | 16 |
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