2018–19 Premijer liga
The 2018–19 HT Premijer liga was the 28th season of the HT Premijer liga, the highest professional basketball league in Croatia. It started on October 6, 2018 and finished on May 30, 2019.
Format
As in the previous season, all participants in Premijer liga including teams that play ABA League joined the regular season. It was played with a double round-robin format where the eight first qualified teams joined the playoffs, while the penultimate will be play relegation playoffs and last qualified one was relegated.Current teams
Promotion and relegation
;Teams promoted from the First League- Bosco
- Gorica
- Jazine Arbanasi
- Kaštela
- Zagreb
Locations and team informations
| Team | Coach | City | Venue | Capacity |
| Adria Oil Škrljevo |  Damir Rajković | Škrljevo | Dvorana Mavrinci | |
| Alkar | Srđan Helbich | Sinj | Sportska dvorana Ivica Glavan Ićo | |
| Bosco | Matija Brkljačić | Zagreb | Sportska dvorana Trnsko | |
| Cedevita | Dražen Orešković | Zagreb | Dom sportova | |
| Cibona |  Ivan Velić | Zagreb | Dražen Petrović Hall | |
| Gorica | Josip Sesar | Velika Gorica | Dvorana srednjih škola Velika Gorica | |
| Hermes Analitica | Zvonimir Mravak | Zagreb | Dražen Petrović Hall | |
| Split | Ante Grgurević | Split | Arena Gripe | |
| Šibenik | Miro Jurić | Šibenik | Sportska dvorana Baldekin | |
| Vrijednosnice | Domagoj Kujundžić | Osijek | Gradski vrt Hall | |
| Zabok | Ivan Tomas | Zabok | Zabok Sports Hall | |
| Zadar | Ante Nazor | Zadar | Krešimir Ćosić Hall |
| Teams that play in the 2018–19 First Adriatic League | |
Teams that play in the 2018–19 Second Adriatic League | |
| Teams that play in the 2018-19 Alpe Adria Cup |