Barça was the defending champion which was swept in semifinals by Real Madrid in a rematch of last year's finals, with Los Blancos winning a record-extending 37th Spanish title (15th in the ACB era) after another sweep against outstanding UCAM Murcia in the finals.

A total of 18 teams contested the league, including 16 sides from the 2022–23 season and two promoted from the 2022–23 LEB Oro.

On May 13, 2023, MoraBanc Andorra became the first team to secure the promotion to ACB after a 95–61 huge win to Club Ourense Baloncesto in the next-to-last round of the regular season that crowned it as LEB Oro champions.

[2] On June 18, 2023, Zunder Palencia became the second team to achieve the promotion to ACB after winning the LEB Oro Final Four in a 95–83 win against Hereda San Pablo Burgos to get the last spot to ACB.

[2] The first team to be relegated from ACB was Carplus Fuenlabrada, after a 93–112 huge loss against Cazoo Baskonia on 23 April 2023, ending their 18-year stay in the top tier.