| Horgen to Opole | 483.66 mi (778.38 km) |
| Horgen to Orzesze | 503.30 mi (809.99 km) |
| Horgen to Osowa | 654.67 mi (1,053.59 km) |
| Horgen to Ostroda | 667.38 mi (1,074.05 km) |
| Horgen to Ostroleka | 698.29 mi (1,123.79 km) |
| Horgen to Ostrow Mazowiecka | 701.60 mi (1,129.11 km) |
| Horgen to Ostrow Wielkopolski | 512.24 mi (824.36 km) |
| Horgen to Ostrowiec Swietokrzyski | 630.96 mi (1,015.43 km) |
| Horgen to Ostrzeszow | 508.07 mi (817.66 km) |
| Horgen to Oswiecim | 520.68 mi (837.95 km) |
| Horgen to Otwock | 656.57 mi (1,056.64 km) |
| Horgen to Ozarow Mazowiecki | 641.95 mi (1,033.12 km) |
| Horgen to Ozimek | 494.95 mi (796.54 km) |
| Horgen to Ozorkow | 577.17 mi (928.87 km) |
| Horgen to Pabianice | 570.33 mi (917.85 km) |
