2023–24 ABA League First Division

The 2023–24 AdmiralBet ABA League is the 22nd season of the ABA League with 14 teams from former Yugoslavia, namely Bosnia and Herzegovina, Croatia, Montenegro, Serbia, and Slovenia participating in it.

Promotion and relegation
A total of 14 teams will contest the league in the 2023–24 season (and until the 2024–25 season).

Referees
A total of 57 ABA officials set to work on the 2023–24 season in ABA 1 and ABA 2:

Regular season
The regular season is scheduled to commence on 29 September 2023 and end on 5 April 2024.

Results by round
The table lists the results of teams in each round.

Playoffs
As was the case in the previous season, top 8 teams will advance to Playoffs. Quarterfinals will be played in best-of-3 series, while semifinals and finals will be played in best-of-5 series.

Quarterfinals

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Semifinals

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Finals

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Relegation Playoffs
The 13th placed team of the First Division season and the runners-up of the Second Division season should play in the Qualifiers for a spot in the next First Division season. However, board meeting of ABA league in April decided that no team would be relegated this season.

MVP of the Round
Source: ABA League