The 2018–19 Liga MX season was the 72nd professional season of the top-flight football league in Mexico. The season was split into two championships—the Torneo Apertura and the Torneo Clausura—each in an identical format and each contested by the same eighteen teams.

The Liga MX, officially known as the Liga BBVA MX for sponsorship reasons, is the top professional football division in Mexico. Formerly known as the Primera División de México, it is contested by 18 clubs and is divided into two tournaments – "Apertura" and "Clausura"– which typically run from July to December and January to May. The champion of each tournament is decided via a playoff ("Liguilla") system. Since 2020, promotion and relegation has been suspended, which is to last until 2026.