Nafarroa
| Nombre | Altitud | Zone | Ph. | |
|---|---|---|---|---|
 | Ugarra | 854 | 27 | |
| Ugarron | 730 | 7 | |
| Ugarte | 629 | 5 | |
| Ukerdi | 2251 | 48 | |
| Ukua | 1061 | Labia | 13 |
| Ulizar | 867 | 37 | |
| Unako putzua | 1177 | 14 | |
| Unanua | 651 | 10 | |
| Unboto | 796 | 24 | |
| Unesa | 993 | 4 | |
| Untzueko haitza | 990 | Alaitz | 22 |
| Unzanos | 734 | 5 | |
| Urakorri | 1306 | Aralar | 40 |
| Urdanatz / Erbilarreta | 1118 | 27 | |
| Urdanegi | 1132 | 8 | |
| Urdani | 855 | 7 | |
| Urdantxi | 749 | 4 | |
| Urdazkain | 899 | 7 | |
| Urepel | 1056 | 41 | |
| Urkieta | 854 | 27 | |
| Urkizta | 687 | 10 | |
| Urkulu | 1419 | 51 | |
| Urramendi | 886 | 6 | |
| Urreako Haitza | 786 | Aralar | 30 |
| Urrizkain | 1212 | Areta | 11 |
| Urrozgoti | 742 | 9 | |
| Urruxka | 987 | 17 | |
| Uztartza | 876 | 14 | |
| Valdeibañez | 607 | 8 | |
| Valdelobos | 628 | 6 |
