| Údenárska | 080 01 | Postcode Udenarska (street) » Presov » Slovakia |  |
|
| Údernícka | 851 01 | Postcode Udernicka (street) » Bratislava » Slovakia | | |
| Údol | 065 45 | Postcode Udol » Stara Lubovna » Slovakia | | |
| Údolná | 969 01 | Postcode Udolna (street) » Banska Stiavnica » Slovakia | | |
| Údolná | 811 02 | Postcode Udolna (street) » Bratislava » Slovakia | | |
| Úhorná | 055 66 | Postcode Uhorna » Gelnica » Slovakia | | |
| Újazd | 913 31 | Postcode Ujazd » Trencin » Slovakia | | |
| Úpor | 076 16 | Postcode Upor » Trebisov » Slovakia | | |
| Úprkova | 811 04 | Postcode Uprkova (street) » Bratislava » Slovakia | | |
| Úradnícka | 831 03 | Postcode Uradnicka (street) » Bratislava » Slovakia | | |
| Ústecká | 010 08 | Postcode Ustecka (street) » Zilina » Slovakia | | |
| Ústianska | 917 01 | Postcode Ustianska (street) » Trnava » Slovakia | | |
| Ústie nad Priehradou | 028 01 | Postcode Ustie nad Priehradou » Tvrdosin » Slovakia | | |
| Úsvit | 059 11 | Postcode Usvit » Poprad » Slovakia | | |
| Úvozná | 969 01 | Postcode Uvozna (street) » Banska Stiavnica » Slovakia | | |
| Úvozná | 841 10 | Postcode Uvozna (street) » Bratislava » Slovakia | | |
| Úzka | 969 01 | Postcode Uzka (street) » Banska Stiavnica » Slovakia | | |
| Úzka | 811 01 | Postcode Uzka (street) » Bratislava » Slovakia | | |
| Úzka | 947 01 | Postcode Uzka (street) » Hurbanovo » Slovakia | | |
| Úzka | 945 01 | Postcode Uzka (street) » Komarno » Slovakia | | |
| Úzka | 040 01 | Postcode Uzka (street) » Kosice » Slovakia | | |
| Úzka | 984 01 | Postcode Uzka (street) » Lucenec » Slovakia | | |
| Úzka | 949 01 | Postcode Uzka (street) » Nitra » Slovakia | | |
| Úzka | 080 05 | Postcode Uzka (street) » Presov » Slovakia | | |
| Úzka | 927 05 | Postcode Uzka (street) » Sala » Slovakia | | |
