| Klobučnícka | 945 05 | Postcode Klobucnicka (street) » Komarno » Slovakia |  |
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| Klobušice | 019 01 | Postcode Klobusice » Ilava » Slovakia | | |
| Klokoč | 962 25 | Postcode Klokoc » Detva » Slovakia | | |
| Klokočina | 949 11 | Postcode Klokocina » Nitra » Slovakia | | |
| Klokočov | 023 22 | Postcode Klokocov » Cadca » Slovakia | | |
| Klokočov | 072 36 | Postcode Klokocov » Michalovce » Slovakia | | |
| Klokočova | 851 01 | Postcode Klokocova (street) » Bratislava » Slovakia | | |
| Klubina | 023 04 | Postcode Klubina » Cadca » Slovakia | | |
| Kluchova | 949 01 | Postcode Kluchova (street) » Nitra » Slovakia | | |
| Kluknava | 053 51 | Postcode Kluknava » Gelnica » Slovakia | | |
| Klásková | 821 07 | Postcode Klaskova (street) » Bratislava » Slovakia | | |
| Klátova Nová Ves | 958 44 | Postcode Klatova Nova Ves » Partizanske » Slovakia | | |
| Kláštor pod Znievom | 038 43 | Postcode Klastor pod Znievom » Martin » Slovakia | | |
| Kláštorná | 031 04 | Postcode Klastorna (street) » Liptovsky Mikulas » Slovakia | | |
| Kláštorná | 984 01 | Postcode Klastorna (street) » Lucenec » Slovakia | | |
| Kláštorská | 821 05 | Postcode Klastorska (street) » Bratislava » Slovakia | | |
| Kláštorská | 949 01 | Postcode Klastorska (street) » Nitra » Slovakia | | |
| Klíž | 958 45 | Postcode Kliz » Partizanske » Slovakia | | |
| Klížska Nemá | 946 19 | Postcode Klizska Nema » Komarno » Slovakia | | |
| Klížske Hradište | 958 45 | Postcode Klizske Hradiste » Partizanske » Slovakia | | |
| Klčov | 053 02 | Postcode Klcov » Levoca » Slovakia | | |
| Klčovany | 919 08 | Postcode Klcovany » Trnava » Slovakia | | |
| Kmeťkova | 949 01 | Postcode Kmetkova (street) » Nitra » Slovakia | | |
| Kmeťova | 040 01 | Postcode Kmetova (street) » Kosice » Slovakia | | |
| Kmeťova | 031 01 | Postcode Kmetova (street) » Liptovsky Mikulas » Slovakia | | |
