| Name of the place | CERL ID of a place | Country | Longitude | Latitude | |
|---|---|---|---|---|---|
| Royston (Hertfordshire) | cnl00002237 | England | -0.0202 | 52.0471 | |
| Rudkøbing | cnl00022280 | Denmark | 10.71019 | 54.937878 | |
| Rudolstadt | cnl00031893 | Germany | 11.33 | 50.7191666666667 | |
| Rueil | cnl00019620 | France | — | — | |
| Rueil-Malmaison | cnl00022736 | France | — | — | |
| Rugby | cnl00013434 | England | -1.25 | 52.3697222222222 | |
| Rumigny | cnl00020782 | France | — | — | |
| Rupelmonde | cnl00022601 | Belgium | 4.290833 | 51.126111 | |
| Ruppersthal | cnl00024655 | — | — | — | |
| Ruscombe (Berkshire) | cnl00050776 | England | -0.852 | 51.48 | |
| Rushden (Northamptonshire) | — | England | -0.601 | 52.288 | |
| Russia | cnl00028006 | Russia | — | — | |
| Ruthven | cnl00019828 | Scotland | -4.04416666666667 | 57.0677777777778 | |
| Rutland | cnl00001677 | — | -0.65 | 52.6666666666667 | |
| Rye (Sussex) | cnl00020387 | England | — | — | |
| Rzeszów | cnl00004325 | Poland | 22.0 | 50.0497222222222 | |
| Sabbioneta | cnl00013494 | Italy | 10.65 | 45.0 | |
| Sablé-sur-Sarthe | cnl00001191 | France | -0.333055555555556 | 47.8330555555556 | |
| Sables-d'Olonne | cnl00021390 | France | — | — | |
| Sacy | cnl00019920 | France | — | — | |
| Safed | cnl00030430 | Israel | 35.4980555555556 | 32.9655555555556 | |
| Saffron Walden | cnl00046609 | England | 0.242222222222222 | 52.0233333333333 | |
| Saint Andrews | cnl00013520 | Scotland | -2.78 | 56.3291666666667 | |
| Saint Marcel d'Ardèche | cnl00019585 | France | 4.61666666666667 | 44.3166666666667 | |
| Saint Neot's | cnl00003170 | England | -0.266666666666667 | 52.2333333333333 |