| Name of the place | CERL ID of a place | Country | Longitude | Latitude | |
|---|---|---|---|---|---|
| Ulm [non-CERL] | — | — | — | — | |
| Ulverston (Lancashire) | cnl00014852 | England | -3.09 | 54.193 | |
| Uman | cnl00003382 | Ukraine | — | — | |
| Universität Helmstedt [non-CERL] | — | — | — | — | |
| Upcot | cnl00022453 | England | — | — | |
| Upham | — | England | — | — | |
| Upleward | — | Germany | 7.04667 | 53.42134 | |
| Uppingham (East Midlands) | cnl00050701 | England | -0.7222 | 52.59 | |
| Uppington (Shropshire) | cnl00050679 | England | -2.593 | 52.682 | |
| Uppland | cnl00037889 | Sweden | 18.0666666666667 | 60.0330555555556 | |
| Upsala | cnl00029193 | Sweden | 17.6294444444444 | 59.8694444444444 | |
| Upton (Northamptonshire) | — | England | — | — | |
| Urbino | cnl00014894 | Italy | 12.63 | 43.72 | |
| Urdax | cnl00019228 | Spain | — | — | |
| Urville | cnl00019615 | France | — | — | |
| Usseaux | cnl00021968 | Italy | 7.029444 | 45.048889 | |
| Ustaritz | cnl00017247 | France | -1.4553 | 43.4003 | |
| Utopie | cnl00001498 | No country: false imprint | — | — | |
| Utrecht | cnl00006326 | Netherlands | 5.12916666666667 | 52.0791666666667 | |
| Utrecht [non-CERL] | — | — | — | — | |
| Utzenstorf | cnl00018186 | Switzerland | 7.55 | 47.133333 | |
| Uxbridge | cnl00014912 | England | -0.479722222222222 | 51.5497222222222 | |
| Uzerche | cnl00017864 | France | — | — | |
| Uzès | cnl00014913 | France | 4.42 | 44.02 | |
| Vacqueyras (Vaucluse) | cnl00019908 | France | 4.9831 | 44.138 |