First Men's League () is a second-tier professional men's basketball league in Croatia. The league was founded in 2017 replacing the former A2 Basketball League.
League champions are automatically promoted to Premijer Liga, while runners-up enter a promotion playoff against the next-to-last placed team from Premijer Liga.
The following is the list of 14 clubs for the 2024âÂÂ25 season, scheduled to start in October 2024.