| Oliveira do Bairro to Oberkirch | 983.64 mi (1,583.02 km) |
| Oliveira do Bairro to Obernburg am Main | 1,069.43 mi (1,721.08 km) |
| Oliveira do Bairro to Obernkirchen | 1,162.06 mi (1,870.16 km) |
| Oliveira do Bairro to Oberschleissheim | 1,121.00 mi (1,804.07 km) |
| Oliveira do Bairro to Oberstdorf | 1,044.65 mi (1,681.20 km) |
| Oliveira do Bairro to Obertraubling | 1,164.73 mi (1,874.46 km) |
| Oliveira do Bairro to Obertshausen | 1,065.74 mi (1,715.15 km) |
| Oliveira do Bairro to Oberursel | 1,061.13 mi (1,707.73 km) |
| Oliveira do Bairro to Ochsenfurt | 1,099.12 mi (1,768.86 km) |
| Oliveira do Bairro to Ochsenhausen | 1,047.24 mi (1,685.37 km) |
| Oliveira do Bairro to Ochtrup | 1,096.26 mi (1,764.26 km) |
| Oliveira do Bairro to Odenthal | 1,042.08 mi (1,677.07 km) |
| Oliveira do Bairro to Oelde | 1,111.23 mi (1,788.35 km) |
| Oliveira do Bairro to Oelsnitz | 1,206.23 mi (1,941.24 km) |
| Oliveira do Bairro to Oer-Erkenschwick | 1,072.99 mi (1,726.80 km) |
