2017–18 A-1 League

The 2017–18 HT Premijer liga was the 27th season of the HT Premijer liga, the highest professional basketball league in Croatia. It started on 6 October 2017 and finished on 3 June 2018. Cedevita retained the title and achieved their fifth league overall.

2017–18 A-1 League

The 2017–18 HT Premijer liga was the 27th season of the HT Premijer liga, the highest professional basketball league in Croatia. It started on 6 October 2017 and finished on 3 June 2018. Cedevita retained the title and achieved their fifth league overall.