The 2020–21 Håndboldligaen (known as the "HTH Herreligaen" for sponsorship reasons) was the 85th season of the Danish Handball League, the top men's handball league in Denmark. A total of fourteen teams contested this season's league. TMS Ringsted were promoted from the 1st Division the previous season.
Aalborg Håndbold won the title, when they beat Bjerringbro-Silkeborg in the finals. GOG Håndbold won the regular season.
Relegation/promotion.
TMS Ringsted finished last in the table, and should thus by league rules have been relegated. However, in April 2021, after the conclusion of the regular season, Aarhus Håndbold, was declared bankrupt. Their team was pulled out of the league, and their matches were considered not contested.
Nordsjælland Håndbold won the First Division, the second tier, and was thus promoted to the Håndboldligaen. Skive fH won the First Division play-off round and thus had to meet the worst placed team in the Håndboldligaen relegation round. This would be Aarhus Håndbold, as they had not competed, and thus had not gained any points at all.
However, TMS Ringsted decided to appeal the relegation, and it was found that due to Aarhus Håndbold's bankruptcy, they had the right to remain in the league. This was decided after Skive fH had already secured promotion, as Aarhus Håndbold could not compete. This meant that only one team was relegated, but two were promoted. Therefore it was decided that for the following season the league would have 15, not 14 teams. 
Teams.
Arenas and locations.
The following 15 clubs competed in the Håndboldligaen during the 2021–22 season:
-->
Playoffs.
Semifinals.
Semifinals were played best-of-three format.
"Highest ranking team in the regular season plays at home in the second match."
Third place playoff.
Semifinals were played best-of-three format.
"Highest ranking team in the regular season plays at home in the second match."
Finals.
"Highest ranking team in the regular season plays at home in the second match."
Statistics.
Top goalscorers.
Source: