| Cities | Distance |
|---|---|
| Rhondda to Nuth | 404.70 mi (651.30 km) |
| Rhondda to Oegstgeest | 338.24 mi (544.34 km) |
| Rhondda to Oirschot | 374.34 mi (602.44 km) |
| Rhondda to Oisterwijk | 369.63 mi (594.87 km) |
| Rhondda to Oldebroek | 399.94 mi (643.64 km) |
| Rhondda to Oldenzaal | 442.90 mi (712.78 km) |
| Rhondda to Ommen | 421.98 mi (679.11 km) |
| Rhondda to Oosterend | 411.61 mi (662.42 km) |
| Rhondda to Oosterhout | 354.70 mi (570.83 km) |
| Rhondda to Oosterwolde | 420.69 mi (677.03 km) |
| Rhondda to Oostzaan | 357.19 mi (574.84 km) |
| Rhondda to Opmeer | 362.28 mi (583.03 km) |
| Rhondda to Oss | 382.56 mi (615.67 km) |
| Rhondda to Oud-Beijerland | 334.77 mi (538.76 km) |
| Rhondda to Oudenbosch | 340.64 mi (548.21 km) |