| Osmaneli to Oerlinghausen | 1,291.02 mi (2,077.69 km) |
| Osmaneli to Oestrich-Winkel | 1,255.54 mi (2,020.60 km) |
| Osmaneli to Offenburg | 1,219.69 mi (1,962.91 km) |
| Osmaneli to Oftersheim | 1,214.39 mi (1,954.37 km) |
| Osmaneli to Ohrdruf | 1,174.43 mi (1,890.07 km) |
| Osmaneli to Ohringen | 1,171.83 mi (1,885.88 km) |
| Osmaneli to Olbernhau | 1,072.88 mi (1,726.64 km) |
| Osmaneli to Olching | 1,068.23 mi (1,719.15 km) |
| Osmaneli to Oldenburg | 1,349.30 mi (2,171.49 km) |
| Osmaneli to Oldenburg in Holstein | 1,307.65 mi (2,104.45 km) |
| Osmaneli to Olfen | 1,330.84 mi (2,141.78 km) |
| Osmaneli to Olpe | 1,291.77 mi (2,078.90 km) |
| Osmaneli to Olsberg | 1,277.20 mi (2,055.46 km) |
| Osmaneli to Oranienburg | 1,164.91 mi (1,874.74 km) |
| Osmaneli to Ortenberg | 1,223.60 mi (1,969.19 km) |
