| Name of the place | CERL ID of a place | Country | Longitude | Latitude | |
|---|---|---|---|---|---|
| Westmaas | — | Netherlands | 4.473056 | 51.7875 | |
| Westminster | cnl00015428 | England | -0.119722222222222 | 51.5 | |
| Westmorland | cnl00020392 | England | — | — | |
| Westzaan | cnl00015431 | Netherlands | 4.76972222222222 | 52.4697222222222 | |
| Westzaandam | cnl00015833 | Netherlands | 4.825556 | 52.441667 | |
| Wetter | cnl00030917 | Germany | 7.39055555555556 | 51.3836111111111 | |
| Wetzlar | cnl00015438 | Germany | 8.5 | 50.5491666666667 | |
| Weymouth | cnl00015443 | England | -2.45 | 50.6 | |
| Weymouth (Massachusetts) | cnl00050761 | United States | -70.940278 | 42.220833 | |
| Whatfield (Suffolk) | cnl00050717 | England | 0.954 | 52.079 | |
| Wheatley (Oxfordshire) | — | England | — | — | |
| Whitby | cnl00003435 | England | -0.616666666666667 | 54.4830555555556 | |
| Whitchurch-on-Thames | cnl00019404 | England | -1.087 | 51.49 | |
| Whitehaven | cnl00003220 | England | -3.58305555555556 | 54.5494444444444 | |
| Wien | cnl00016260 | Austria | 16.37 | 48.21 | |
| Wien [non-CERL] | — | — | — | — | |
| Wiener Neustadt | cnl00009433 | Austria | 16.25 | 47.7997222222222 | |
| Wiesbaden | cnl00008289 | — | 8.25 | 50.0797222222222 | |
| Wigan | cnl00015479 | England | -2.62 | 53.53 | |
| Wigton | cnl00002195 | England | -3.15888888888889 | 54.8227777777778 | |
| Wijk bij Duurstede | cnl00033029 | Netherlands | 5.333333 | 51.983333 | |
| Wildervank | cnl00051371 | Netherlands | 6.86666666666667 | 53.0833333333333 | |
| Wildhaus | cnl00037867 | Switzerland | 9.35388888888889 | 47.2058333333333 | |
| Wilhermsdorf | cnl00006348 | Germany | 13.3166666666667 | 52.4830555555556 | |
| Williamsburg (Virginia) | cnl00015505 | United States | -76.7 | 37.27 |