1980 Danish 1st Division

The 1980 Danish 1st Division season was the 35th season of the Danish 1st Division league championship, governed by the Danish Football Association. It constituted the 67th edition of the Danish football championship, and saw Kjøbenhavns Boldklub win their fifteenth and last championship title.

The Danish champions qualified for the European Cup 1981-82, while the second placed teams qualified for the UEFA Cup 1981-82. The three lowest placed teams of the tournament were directly relegated to the Danish 2nd Division for the following season. Likewise, the Danish 2nd Division champions and two first runners-up were promoted to the 1st Division.