2023–24 Danish 1st Division

The 2023–24 Danish 1st Division season was the 28th season of the Danish 1st Division league championship, governed by the Danish Football Association.

Participants
Horsens and AaB finished the 2022–23 season of the Superliga in 11th and 12th place, respectively, and were relegated to the 1st Division. They replaced Vejle BK and Hvidovre IF, who were promoted to the 2023–24 Danish Superliga.

Kolding IF and B.93 won promotion from the 2022–23 Danish 2nd Division. They replaced Fremad Amager and Nykøbing FC.

Personnel and sponsoring
Note: Flags indicate national team as has been defined under FIFA eligibility rules. Players and Managers may hold more than one non-FIFA nationality.

Promotion Group
The top 6 teams will compete for 2 spots in the 2024–25 Danish Superliga. Points and goals carried over in full from the regular season.

Relegation Group
The bottom 6 teams will compete to avoid the 2 relegations to the 2024–25 Danish 2nd Division. Points and goals carried over in full from the regular season.