| Elmshorn to Obernburg am Main | 271.16 mi (436.39 km) |
| Elmshorn to Obernkirchen | 105.00 mi (168.99 km) |
| Elmshorn to Oberschleissheim | 389.12 mi (626.23 km) |
| Elmshorn to Oberstdorf | 439.06 mi (706.61 km) |
| Elmshorn to Obertraubling | 347.99 mi (560.03 km) |
| Elmshorn to Obertshausen | 256.99 mi (413.59 km) |
| Elmshorn to Oberursel | 249.40 mi (401.37 km) |
| Elmshorn to Ochsenfurt | 283.97 mi (457.01 km) |
| Elmshorn to Ochsenhausen | 392.64 mi (631.90 km) |
| Elmshorn to Ochtrup | 147.95 mi (238.11 km) |
| Elmshorn to Odenthal | 216.07 mi (347.74 km) |
| Elmshorn to Oelde | 146.64 mi (236.00 km) |
| Elmshorn to Oelsnitz | 253.95 mi (408.69 km) |
| Elmshorn to Oer-Erkenschwick | 177.04 mi (284.91 km) |
| Elmshorn to Oerlinghausen | 130.00 mi (209.21 km) |
