| Gunzburg to Obernburg am Main | 108.60 mi (174.78 km) |
| Gunzburg to Obernkirchen | 268.35 mi (431.87 km) |
| Gunzburg to Oberschleissheim | 61.11 mi (98.34 km) |
| Gunzburg to Oberstdorf | 72.07 mi (115.98 km) |
| Gunzburg to Obertraubling | 93.41 mi (150.33 km) |
| Gunzburg to Obertshausen | 128.99 mi (207.59 km) |
| Gunzburg to Oberursel | 143.00 mi (230.14 km) |
| Gunzburg to Ochsenfurt | 83.24 mi (133.97 km) |
| Gunzburg to Ochsenhausen | 30.20 mi (48.61 km) |
| Gunzburg to Ochtrup | 292.69 mi (471.04 km) |
| Gunzburg to Odenthal | 227.18 mi (365.61 km) |
| Gunzburg to Oelde | 251.73 mi (405.12 km) |
| Gunzburg to Oelsnitz | 160.20 mi (257.81 km) |
| Gunzburg to Oer-Erkenschwick | 257.87 mi (415.00 km) |
| Gunzburg to Oerlinghausen | 252.93 mi (407.05 km) |
