2017–18 Danish 1st Division

The 2017–18 Danish 1st Division season was the 22nd season of the Danish 1st Division league championship, governed by the Danish Football Association. The division-champion, the runners-up and the third placed team are promoted to the 2018–19 Danish Superliga. The teams in 11th and 12th places are relegated to the 2018–19 Danish 2nd Divisions.

2017–18 Danish 1st Division

The 2017–18 Danish 1st Division season was the 22nd season of the Danish 1st Division league championship, governed by the Danish Football Association. The division-champion, the runners-up and the third placed team are promoted to the 2018–19 Danish Superliga. The teams in 11th and 12th places are relegated to the 2018–19 Danish 2nd Divisions.