Slovakian vehicle registration plates have a group of letters on the left,
the first two indicating the town or district of registration:
- BA - Bratislava town
- BB - Banská Bystrica
- BC - Banská Bystrica
- BH - Bratislava district
- BJ - Bardejov
- BL - Bratislava town
- BN - Bánovce nad Bebravou
- BR - Brezno
- BS - Banská Stiavnica
- BT - Bratislava district
- BY - Bytca (formerly used for Bratislava district)
- DK - Dolný Kubín
- DS - Dunajská Sreda
- DT - Detva
- GA - Galanta
- GL - Gelnica
- HC - Hlohovec
- HE - Humenné
- HN - Humenné
- KA - Krupina
- KE - Koice town
- KI - Koice town
- KK - Kezmarok
- KM - Kysucké Nové Mesto
- KN - Komárno
- KS - Koice district
- LC - Lucenec
- LE - Levoca
- LM - Liptovský Milkuás
- LV - Levice
- MA - Malacky
- MI - Michalovce
- ML - Medzilaborce
- MT - Martin
- MY - Myjava
- NI - Nitra
- NM - Nové Mesto nad Váhom
- NO - Námestovo
- NR - Nitra
- NZ - Nové Zámky
- PB - Povázská Bystrica
- PD - Prievidza
- PE - Partizánske
- PK - Pezinok
- PN - Piestany
- PO - Preov
- PP - Poprad
- PT - Poltar
- PU - Púchov
- PV - Preov
- PX - Povázská Bystrica
- RA - Revúca
- RK - Ruzomberok
- RS - Rimavská Sobota
- RV - Roznava
- SA - Sala
- SB - Sabinov
- SC - Senec
- SE - Senica
- SI - Skalica
- SK - Svidnik
- SL - Stará Lubovna
- SN - Spiská Nová Ves
- SO - Sobrance
- SP - Stropkov
- SV - Snina
- TA - Trnava
- TC - Trencin
- TN - Trencin
- TO - Topolcany
- TR - Turcianske Teplice
- TS - Tvrdosn
- TT - Trnava
- TV - Trebiov
- VK - Velký Krti
- VT - Vranov nad Topl'ou
- VV - Vranov
- ZA - Zimina (formerly used for Ziar nad Hronom)
- ZC - Zarnovica
- ZH - Ziar nad Hronom
- ZI - Zilina
- ZM - Zlaté Moravce
- ZV - Zvolen