| Ottawa County, MI (County) |
| Ottawa County, OH (County) |
| Ottawa Hills, OH (Village) |
| Ottawa Town, WI (Town) |
| Ottawa Township, OH (Township) |
| Ottawa Township, IL (Township) |
| Otter, KS (Township) |
| Otter Creek, KS (Township) |
| Otter Creek, IN (Township) |
| Otter Creek, IN (Township) |
| Otter Creek , FL (Town) |
| Otter Creek Town, WI (Town) |
| Otter Creek Town, WI (Town) |
| Otter Creek Township, PA (Township) |
| Otter Creek Township, IL (Township) |
