Ignacio Trelles Campos (31 July 1916 – 24 March 2020) was a Mexican football player and manager.

[citation needed] He took Cruz Azul to consecutive México Primera División (Mexico First Division) championships, 1979 and 1980; a feat the team has yet to repeat.

In his teenage years, Trelles's family relocated to San Miguel Chapultepec where he regularly played football in the streets.

The club won the Mexican Primera División three times, in 1934–35, 1936–37 and 1937–38 and the Copa MX once, in 1934–35.

[3][4] He retired from playing in February 1948 with Atlante F.C., having suffered a fractured tibia and fibula in his right leg.