The Mexican football league system is organized by the Federación Mexicana de Fútbol (FMF), except for the Liga MX and the Liga de Expansión MX, which are organized independently; The league system consist of six professional divisions (four men's levels and two women's levels).

In addition to having other national competitions that are the Campeón de Campeones, which is a super cup that is played in each division, except in Liga TDP and Liga TDP Femenil. The Copa MX was played for the top and second levels, and the Copa Conecta is also played for the third and fourth levels.

Liga MX formerly called as Liga Mayor from 1943 to 1949, and Primera División de México from 1949 to 2012, is the top level division of Mexican football and consists of 18 clubs. Each calendar year is split into two short tournaments called Apertura and Clausura. In each short tournament, a club plays the other 17 clubs once in the regular phase.

A new champion is crowned for each short tournament through a final phase called liguilla, consisting of 10 teams. The top six teams advance to the quarterfinals, qualifying directly to quarterfinals, while the next 4 teams qualify for the play-in round, which determines the next two liguilla spots.^[1][2][3] The clubs are re-seeded after each round so that the highest seeded team remaining always plays the lowest seed remaining. In the play-in, the 7th-placed team host the 8th, the winner of that match advances to the quarterfinals, and the losing team has another chance facing the winning team between 9th and 10th-placed. The winner of that last play-in match advances to complete the 8 teams for the liguilla. If the two clubs are tied after 90 minutes, it proceeds directly to a penalty shoot-out. Starting in the quarterfinal round, 8 teams (6 directly qualified clubs and 2 play-in round winners) play in a two-legged tie, with the higher-seed hosting the second leg. The team with the higher aggregate score advances to the next round. In the quarterfinals and semifinals, if the two clubs are tied on aggregate after both legs, the higher seed advances automatically. In the final, if both teams are tied after both legs, 30 minutes of extra time are played. If the clubs are still tied after that, the champion is determined by a penalty shoot-out. Currently the promotion and relegation are suspended from 2020 to 2026, due to the shutdown of the Ascenso MX's which was caused by the COVID-19 pandemic and financial woes.^[4]

It is organized by the FMF and consists of four men's division.

• CONCACAF Champions Cup: 6 clubs qualified (Champions and runners-up of the Apertura and Clausura tournaments, and the best two clubs in the accumulated table points of the season).
• Leagues Cup: All 18 Liga MX clubs qualified.

The women's top level in Mexico is the Liga MX Femenil started in September 2017.^[5] The Liga TDP Femenil was started in October 2024, as the second women's professional league in Mexico. Another non-professional women's league organized in parallel is the Liga Mexicana de Fútbol Femenil organized by (LIMEFFE), was established in 2007.

• CONCACAF W Champions Cup: 3 clubs (Champions of the Apertura and Clausura tournaments, and the best runners-up of the season).
• Summer Cup: 6 clubs (The best six clubs in the accumulated table points of the season).

• Football in Mexico
• Mexican Football Federation
• Liga MX
• Liga de Expansión MX
• Liga Premier
• Liga TDP
• Liga MX Femenil
• List of football clubs in Mexico
• List of Mexican football champions

• Official website of Liga MX and Ascenso MX
• Official website of Segunda División de México
• Official website of Tercera División de México
• Official website of Liga Mexicana de Fútbol Femenil
• Mexico women football news