Primera Fuerza
| Founded | 1922, as Campeonato de Primera Fuerza 1931, as Liga Mayor |
|---|---|
| Folded | 1943 |
| Country | Mexico |
| Number of clubs | 18 |
| Level on pyramid | 1 |
| Domestic cup(s) | Copa México (1932–1942) |
| Last champions | CD Marte (2nd title) |
| Most championships | RC España (6 titles) |
Campeonato de Primera Fuerza (English: First Force Championship), later known as Liga Mayor (English: Major League), was an amateur association football league in Mexico. It was founded and organized by the Federación Mexicana de Football Asociación (English: Mexican Association Football Federation), which was the first governing body of Mexican football, after the merger of the Liga Mexicana and Liga Nacional. Asturias FC won the inaugural season and CD Marte were the last champions. It had the total participation of 18 teams, of which only two teams played their matches outside of Mexico City. The league was held from 1922 to 1943, when the first true national and professional league was started.