| Poplar Bluff to Noventa Vicentina | 4,976.39 mi (8,008.72 km) |
| Poplar Bluff to Novi di Modena | 4,966.14 mi (7,992.24 km) |
| Poplar Bluff to Novi Ligure | 4,885.01 mi (7,861.66 km) |
| Poplar Bluff to Nuoro | 5,079.12 mi (8,174.05 km) |
| Poplar Bluff to Occhiobello | 4,992.49 mi (8,034.64 km) |
| Poplar Bluff to Oderzo | 4,994.97 mi (8,038.63 km) |
| Poplar Bluff to Oggiono | 4,869.37 mi (7,836.49 km) |
| Poplar Bluff to Olbia | 5,062.81 mi (8,147.81 km) |
| Poplar Bluff to Oleggio | 4,847.21 mi (7,800.84 km) |
| Poplar Bluff to Olgiate Comasco | 4,853.88 mi (7,811.56 km) |
| Poplar Bluff to Olgiate Olona | 4,856.12 mi (7,815.17 km) |
| Poplar Bluff to Omegna | 4,827.66 mi (7,769.37 km) |
| Poplar Bluff to Opera | 4,879.07 mi (7,852.10 km) |
| Poplar Bluff to Oppeano | 4,961.70 mi (7,985.08 km) |
| Poplar Bluff to Orbassano | 4,824.30 mi (7,763.96 km) |
