2011–12 Tercera División de México season

The 2011–12 Tercera División season is the fourth-tier football league of Mexico. The tournament began on 13 August 2011 and finished on 25 May 2012.

Competition format
The Tercera División (Third Division) is divided into 14 groups. For the 2009/2010 season, the format of the tournament has been reorganized to a home and away format, which all teams will play in their respective group. The 14 groups consist of teams who are eligible to play in the liguilla de ascenso for one promotion spot, teams who are affiliated with teams in the Liga MX, Ascenso MX and Liga Premier, which are not eligible for promotion but will play that who the better filial team in an eight team filial playoff tournament for the entire season.

The league format allows participating franchises to rent their place to another team, so some clubs compete with a different name than the one registered with the FMF.

Group 1
Group with 11 teams from Campeche, Chiapas, Quintana Roo, Tabasco and Yucatán.

Group 2
Group with 13 teams from Oaxaca and Veracruz.

Group 3
Group with 13 teams from Puebla, Tlaxcala and Veracruz.

Group 4
Group with 13 teams from Guerrero, Mexico City, Morelos and Oaxaca.

Group 5
Group with 16 teams from Greater Mexico City.

Group 6
Group with 15 teams from Michoacán and State of Mexico.

Group 7
Group with 13 teams from Hidalgo, Puebla, San Luis Potosí and State of Mexico.

Group 8
Group with 16 teams from Greater Mexico City.

Group 9
Group with 16 teams from Guanajuato, Guerrero, Michoacán and Querétaro.

Group 10
Group with 17 teams from Aguascalientes, Guanajuato, Jalisco, Michoacán, San Luis Potosí and Zacatecas.

Group 11
Group with 17 teams from Colima, Jalisco and Michoacán.

Group 12
Group with 18 teams from Jalisco, Michoacán and Nayarit.

Group 13
Group with 17 teams from Coahuila, Nuevo León, San Luis Potosí and Tamaulipas.

Group 14
Group with 11 teams from Baja California, Sinaloa and Sonora.

Group 15
Group with 10 teams from Chihuahua, Coahuila and Durango.