| Targovishte to Oestrich-Winkel | 993.76 mi (1,599.29 km) |
| Targovishte to Offenburg | 963.99 mi (1,551.39 km) |
| Targovishte to Oftersheim | 954.22 mi (1,535.67 km) |
| Targovishte to Ohrdruf | 908.66 mi (1,462.35 km) |
| Targovishte to Ohringen | 911.42 mi (1,466.79 km) |
| Targovishte to Olbernhau | 806.03 mi (1,297.18 km) |
| Targovishte to Olching | 810.04 mi (1,303.64 km) |
| Targovishte to Oldenburg | 1,082.21 mi (1,741.65 km) |
| Targovishte to Oldenburg in Holstein | 1,041.33 mi (1,675.85 km) |
| Targovishte to Olfen | 1,065.45 mi (1,714.67 km) |
| Targovishte to Olpe | 1,027.44 mi (1,653.50 km) |
| Targovishte to Olsberg | 1,011.84 mi (1,628.41 km) |
| Targovishte to Oranienburg | 898.27 mi (1,445.62 km) |
| Targovishte to Ortenberg | 959.96 mi (1,544.91 km) |
| Targovishte to Oschatz | 839.35 mi (1,350.81 km) |
