| Niksar to Oststeinbek | 1,532.00 mi (2,465.52 km) |
| Niksar to Ottendorf-Okrilla | 1,323.37 mi (2,129.76 km) |
| Niksar to Ottersberg | 1,558.10 mi (2,507.53 km) |
| Niksar to Ottobrunn | 1,345.41 mi (2,165.23 km) |
| Niksar to Ottweiler | 1,564.98 mi (2,518.59 km) |
| Niksar to Overath | 1,584.53 mi (2,550.06 km) |
| Niksar to Oyten | 1,562.16 mi (2,514.05 km) |
| Niksar to Paderborn | 1,540.06 mi (2,478.48 km) |
| Niksar to Papenburg | 1,624.95 mi (2,615.10 km) |
| Niksar to Parchim | 1,466.51 mi (2,360.12 km) |
| Niksar to Pasewalk | 1,391.16 mi (2,238.86 km) |
| Niksar to Passau | 1,274.70 mi (2,051.43 km) |
| Niksar to Pattensen | 1,512.63 mi (2,434.35 km) |
| Niksar to Pegnitz | 1,381.74 mi (2,223.69 km) |
| Niksar to Peine | 1,495.68 mi (2,407.07 km) |
