| Lake Norman of Catawba to Noventa Vicentina | 4,638.75 mi (7,465.35 km) |
| Lake Norman of Catawba to Novi di Modena | 4,624.21 mi (7,441.94 km) |
| Lake Norman of Catawba to Novi Ligure | 4,536.42 mi (7,300.67 km) |
| Lake Norman of Catawba to Nuoro | 4,704.34 mi (7,570.90 km) |
| Lake Norman of Catawba to Occhiobello | 4,652.64 mi (7,487.70 km) |
| Lake Norman of Catawba to Oderzo | 4,663.30 mi (7,504.86 km) |
| Lake Norman of Catawba to Oggiono | 4,529.06 mi (7,288.81 km) |
| Lake Norman of Catawba to Olbia | 4,692.08 mi (7,551.18 km) |
| Lake Norman of Catawba to Oleggio | 4,503.78 mi (7,248.13 km) |
| Lake Norman of Catawba to Olgiate Comasco | 4,512.54 mi (7,262.24 km) |
| Lake Norman of Catawba to Olgiate Olona | 4,513.57 mi (7,263.89 km) |
| Lake Norman of Catawba to Omegna | 4,485.48 mi (7,218.69 km) |
| Lake Norman of Catawba to Opera | 4,535.75 mi (7,299.58 km) |
| Lake Norman of Catawba to Oppeano | 4,623.20 mi (7,440.32 km) |
| Lake Norman of Catawba to Orbassano | 4,474.05 mi (7,200.29 km) |
