| Galway to Oberkirch | 812.52 mi (1,307.63 km) |
| Galway to Obernburg am Main | 814.04 mi (1,310.07 km) |
| Galway to Obernkirchen | 760.53 mi (1,223.95 km) |
| Galway to Oberschleissheim | 961.30 mi (1,547.07 km) |
| Galway to Oberstdorf | 939.68 mi (1,512.27 km) |
| Galway to Obertraubling | 962.84 mi (1,549.54 km) |
| Galway to Obertshausen | 795.24 mi (1,279.81 km) |
| Galway to Oberursel | 781.12 mi (1,257.08 km) |
| Galway to Ochsenfurt | 857.11 mi (1,379.39 km) |
| Galway to Ochsenhausen | 902.58 mi (1,452.56 km) |
| Galway to Ochtrup | 681.82 mi (1,097.28 km) |
| Galway to Odenthal | 700.91 mi (1,128.00 km) |
| Galway to Oelde | 727.53 mi (1,170.85 km) |
| Galway to Oelsnitz | 923.17 mi (1,485.70 km) |
| Galway to Oer-Erkenschwick | 693.86 mi (1,116.65 km) |
