Liga TDP
| Organising body | Federación Mexicana de Fútbol (FMF) |
|---|---|
| Founded | 1967 (as Tercera División de México) |
| Country | Mexico |
| Confederation | CONCACAF |
| Number of clubs | 240 (Zona A and Zona B) |
| Level on pyramid | 4 |
| Promotion to | Liga Premier |
| Domestic cup(s) | Copa Conecta Copa Promesas MX |
| Current champions | Héroes de Zaci (2nd title) |
| Most championships | Celaya San Luis Tecos Atlético Tecomán Cuautitlán Cihuatlán Héroes de Zaci (2 titles each) |
| Website | ligatdp.mx |
| Current: 2025–26 Liga TDP season | |
Liga TDP is a professional association football league in Mexico and the fourth level of the Mexican football league system. Formerly named Tercera División de México (1967–2017). The league has 240 participating clubs, organized into two zones (Zona A with 131 clubs and Zona B with 109 clubs), divided into 17 groups by geographic location. The season consists of one tournament per year, according to FIFA world football calendar. The champions are decided by a final knockout phase in each zone. The champions of Zona A and Zona B compete in the national final, known as Campeón de Campeones de la Liga TDP, the winners are crowned as the Liga TDP champions.
The inaugural edition was the 1967–68 season, with Zapata as the first champions in history. In all, sixty-five editions of the league have been held.
From 1967 to 1982, it was the third level division of Mexican football. The 17 groups consist of clubs eligible for four promotion spots to Liga Premier, teams affiliated with clubs from the highest divisions, which are known as "filiales" are not eligible for promotion.
Celaya, San Luis, Tecos, Atlético Tecomán, Cuautitlán, Cihuatlán and Héroes de Zaci are the most successful clubs with two titles each. In all, fifty-eight clubs have won the league at least once.