|Number of teams||28|
|Relegation to||Primera B Nacional|
|Level on pyramid||1|
|Domestic cup(s)|| Copa Argentina |
|CONMEBOL cup(s)|| Copa Libertadores|
|Current champions||Boca Juniors (2017–18)|
|TV|| TV Pública|
The Primera División is a professional football league in Argentina. It is the country's premier football division and is at the top of the Argentine football league system. Contested by twenty clubs, it operates on a system of promotion and relegation with the Primera B Nacional. The season runs from August to May of the following year. Each season is divided into two tournaments, the Inicial and Final. The winners of the tournaments will play a final match to decide the champion.
In 1891 the Association Argentine Football League was established by Alex Lamont of St. Andrew's Scots School, being the first football league outside of the British Isles. The first Primera División matches were played on 12 April 1891: Buenos Aires FC vs. St. Andrew's and Old Caledonians vs. Belgrano FC. The Primera División turned professional in 1931 when 18 clubs broke away from the amateur leagues to form a professional league. Since then, the season has been contested annually in four different formats and calendars. The league has been under its current format since the 1991–92 season.
Since the start of professionalism, sixteen clubs have been the Argentine champions, although only four clubs have won ten or more titles. The most successful club is River Plate, with 35 titles. The current champion is San Lorenzo.
The Argentine championship was ranked in the top 10 as one of the strongest leagues in the world (for the 2001-2012 period) by the International Federation of Football History & Statistics (IFFHS). Argentina placed 7th after Premier League (England), La Liga (Spain), Serie A (Italy), Série A (Brazil), Bundesliga (Germany) and Ligue 1 (France).
|Primera División Argentina seasons|
|Football in Argentina|
|Top level football leagues of South America – (CONMEBOL)|