The 2008 Primera División Apertura is the first football tournament of the Mexican Primera División 2008−09 season. The tournament began in August 2008 and was contested by the league's 18 teams. Reigning champion Santos Laguna failed to advance to the final losing 2-1 on a two-leg aggregate (0-0 in the first leg) to eventual champions Toluca in the semifinals, and were unable to defend their title. The team of Toluca would beat Cruz Azul 7-6 in penalties after tying 2-2 on a two-leg aggregate (2-0 in the first leg). This was Toluca's 9th championship, placing them as the third most successful club behind América and Guadalajara.

Teams and Stadia

Managerial changes

This is a list of managerial changes made during the tournament.

Regular season

Standings

Group standings

Results

Playoffs

Top goalscorers

Source: MedioTiempo