The Liga MX (Spanish pronunciation: [ˈliɣa ˈeme ˈekis]) is the top level of the Mexican football league system. Currently sponsored by BBVA through its Mexican subsidiary BBVA Bancomer, it is officially known as Liga BBVA Bancomer.

Each season, the league holds two tournaments: the Apertura, which starts in the summer, and the Clausura, which starts in the winter. As of 2017, the league comprises 18 clubs, with one being relegated every year (two tournaments) based upon its league performances over the previous three years. The first 8 teams in the table at the end of the regular phase of the tournament qualify to the liguilla ("mini-league", or "playoff"). Up until July 2011, the league was divided into 3 groups. The group formatting was removed in favor of a single-table format.