| Potsdam to Oberkirch | 345.39 mi (555.85 km) |
| Potsdam to Obernburg am Main | 245.42 mi (394.97 km) |
| Potsdam to Obernkirchen | 166.96 mi (268.70 km) |
| Potsdam to Oberschleissheim | 294.25 mi (473.56 km) |
| Potsdam to Oberstdorf | 366.36 mi (589.60 km) |
| Potsdam to Obertraubling | 240.52 mi (387.08 km) |
| Potsdam to Obertshausen | 243.92 mi (392.56 km) |
| Potsdam to Oberursel | 246.20 mi (396.23 km) |
| Potsdam to Ochsenfurt | 230.39 mi (370.78 km) |
| Potsdam to Ochsenhausen | 329.18 mi (529.76 km) |
| Potsdam to Ochtrup | 248.57 mi (400.04 km) |
| Potsdam to Odenthal | 271.54 mi (437.01 km) |
| Potsdam to Oelde | 212.20 mi (341.50 km) |
| Potsdam to Oelsnitz | 142.41 mi (229.19 km) |
| Potsdam to Oer-Erkenschwick | 252.69 mi (406.66 km) |
