The Argentina football champion is the winner of the highest league in Argentine football, the Primera División. The league season have had different formats, since the original double round-robin until the Liga Profesional. The champion is the team with the most points at the end of the competition.
The first Argentine football champions, St. Andrew's and Old Caledonians, were crowned in 1891 in the first official championship. Alumni was the most successful club with 10 titles until its dissolution in 1911. River Plate is the most successful club, having won 38 titles to date.
The following is a list including all the Primera División champions since the first edition held in 1891. For the first time since 1892, no league championship was held in 2020 after the schedule for a regular league season had been repeatedly delayed because of the COVID-19 pandemic. As the National Government allowed football competitions to return in October, AFA organised the 2020 Copa de la Liga Profesional, a domestic cup conceived as a contingency competition.
The list include all the titles won by each club since the first Primera División championship held in 1891. Clubs in italic no longer exist or are currently disaffiliated from the AFA.
Although most of Primera División championships were decided by points in single and double round-robin tournaments, some tiebreaker matches were played when two (or more) teams ended tied on points at the end of the season in order to define a champion. The following is a list of those cases:
Notes: