Minnesota cities which start with the letter O.
| Place | Place Type | 2010 Population |
|---|---|---|
| O Brien | ||
| Oak Grove | city | 8031 |
| Oak Island | ||
| Oak Park | township | 131 |
| Oak Park Heights | city | 4339 |
| Oak Park Hgts | ||
| Oak Park Hts | ||
| Oakdale | city | 27378 |
| Oakland | township | 295 |
| Odessa | township | 132 |
| Odin | township | 170 |
| Ogema | township | 352 |
| Ogilvie | city | 369 |
| Okabena | city | 188 |
| Oklee | city | 435 |
| Olga | ||
| Olivia | city | 2484 |
| Onamia | township | 575 |
| Onigum | ||
| Orleans | ||
| Ormsby | city | 75 |
| Orono | city | 7437 |
| Oronoco | township | 2220 |
| Orr | city | 267 |
| Ortonville | township | 2011 |
| Osage | township | 895 |
| Osakis | city | 149 |
| Oslo | city | 330 |
| Oslund | ||
| Osseo | city | 2430 |
| Ostrander | city | 254 |
| Oteneagen | township | 310 |
| Otisco | township | 599 |
| Otisville | ||
| Otsego | city | 13571 |
| Otsego | city | 13571 |
| Otsego | city | 13571 |
| Ottertail | city | 572 |
| Outing | ||
| Owatonna | township | 609 |
| Oylen |
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