| Renfrew to Opole | 984.72 mi (1,584.75 km) |
| Renfrew to Orzesze | 1,033.87 mi (1,663.86 km) |
| Renfrew to Osowa | 903.85 mi (1,454.60 km) |
| Renfrew to Ostroda | 976.65 mi (1,571.76 km) |
| Renfrew to Ostroleka | 1,053.53 mi (1,695.49 km) |
| Renfrew to Ostrow Mazowiecka | 1,073.19 mi (1,727.12 km) |
| Renfrew to Ostrow Wielkopolski | 948.00 mi (1,525.66 km) |
| Renfrew to Ostrowiec Swietokrzyski | 1,108.28 mi (1,783.60 km) |
| Renfrew to Ostrzeszow | 959.78 mi (1,544.62 km) |
| Renfrew to Oswiecim | 1,055.73 mi (1,699.04 km) |
| Renfrew to Otwock | 1,067.15 mi (1,717.41 km) |
| Renfrew to Ozarow Mazowiecki | 1,046.27 mi (1,683.81 km) |
| Renfrew to Ozimek | 995.11 mi (1,601.48 km) |
| Renfrew to Ozorkow | 994.84 mi (1,601.04 km) |
| Renfrew to Pabianice | 1,008.15 mi (1,622.47 km) |
