Akademisk Boldklub Gladsaxe (AB) is a Danish professional football club from Gladsaxe north of Copenhagen, currently playing at the 3rd highest level of Danish domestic football in the Danish 2nd Division group 1.

The 2nd Division is a professional association football league for men and the third division in Denmark. It is organised by the Divisionsforeningen on behalf of the Danish Football Association as part of the nation-wide Danmarksturneringen i fodbold (Herre-DM) and is positioned between the second-tier 1st Division and the fourth-tier Danish 3rd Division in the Danish football league system. Clubs in the league must meet certain criteria concerning appropriate facilities and finances. All of the 2nd Division clubs qualify for the proper rounds of the DBU Pokalen. The number of promoted and relegated clubs has fluctuated over the years. In the 2020–21 season two clubs were directly promoted to the 1st Division, while eight teams were relegated to the Denmark Series. From the 2021–22 season, it was changed to two promotion spots and two relegation spots.