| Wausau to Oskaloosa (Iowa) | 295.06 mi (474.86 km) |
| Wausau to Oswego (Illinois) | 235.88 mi (379.61 km) |
| Wausau to Oswego (New York) | 658.62 mi (1,059.94 km) |
| Wausau to Otsego (Minnesota) | 194.89 mi (313.65 km) |
| Wausau to Ottawa (Illinois) | 252.58 mi (406.49 km) |
| Wausau to Ottawa (Kansas) | 526.02 mi (846.55 km) |
| Wausau to Ottumwa (Iowa) | 306.28 mi (492.91 km) |
| Wausau to Overland (Missouri) | 434.49 mi (699.24 km) |
| Wausau to Overland Park (Kansas) | 493.06 mi (793.50 km) |
| Wausau to Overlea (Maryland) | 774.29 mi (1,246.10 km) |
| Wausau to Oviedo (Florida) | 1,218.12 mi (1,960.38 km) |
| Wausau to Owasso (Oklahoma) | 680.97 mi (1,095.91 km) |
| Wausau to Owatonna (Minnesota) | 186.55 mi (300.23 km) |
| Wausau to Owensboro (Kentucky) | 514.69 mi (828.32 km) |
| Wausau to Owings Mills (Maryland) | 760.37 mi (1,223.70 km) |
