| Katowice to Oberkirch | 505.48 mi (813.49 km) |
| Katowice to Obernburg am Main | 438.77 mi (706.12 km) |
| Katowice to Obernkirchen | 449.27 mi (723.03 km) |
| Katowice to Oberschleissheim | 363.49 mi (584.98 km) |
| Katowice to Oberstdorf | 443.30 mi (713.43 km) |
| Katowice to Obertraubling | 319.40 mi (514.03 km) |
| Katowice to Obertshausen | 450.56 mi (725.10 km) |
| Katowice to Oberursel | 461.03 mi (741.95 km) |
| Katowice to Ochsenfurt | 399.86 mi (643.52 km) |
| Katowice to Ochsenhausen | 436.48 mi (702.45 km) |
| Katowice to Ochtrup | 528.19 mi (850.04 km) |
| Katowice to Odenthal | 523.43 mi (842.38 km) |
| Katowice to Oelde | 483.75 mi (778.52 km) |
| Katowice to Oelsnitz | 302.13 mi (486.23 km) |
| Katowice to Oer-Erkenschwick | 520.25 mi (837.26 km) |
