| Lake Oswego to Noventa Vicentina | 5,576.17 mi (8,973.97 km) |
| Lake Oswego to Novi di Modena | 5,583.50 mi (8,985.78 km) |
| Lake Oswego to Novi Ligure | 5,537.03 mi (8,910.99 km) |
| Lake Oswego to Nuoro | 5,812.30 mi (9,353.99 km) |
| Lake Oswego to Occhiobello | 5,598.86 mi (9,010.50 km) |
| Lake Oswego to Oderzo | 5,569.99 mi (8,964.03 km) |
| Lake Oswego to Oggiono | 5,491.72 mi (8,838.06 km) |
| Lake Oswego to Olbia | 5,781.56 mi (9,304.53 km) |
| Lake Oswego to Oleggio | 5,483.99 mi (8,825.62 km) |
| Lake Oswego to Olgiate Comasco | 5,481.89 mi (8,822.25 km) |
| Lake Oswego to Olgiate Olona | 5,488.51 mi (8,832.90 km) |
| Lake Oswego to Omegna | 5,461.91 mi (8,790.10 km) |
| Lake Oswego to Opera | 5,511.73 mi (8,870.26 km) |
| Lake Oswego to Oppeano | 5,566.48 mi (8,958.38 km) |
| Lake Oswego to Orbassano | 5,489.62 mi (8,834.69 km) |
