León Aillaud Barreiro was an Interim Governor of the Mexican State of Veracruz in the period from June 22, 1911, to December 12, 1911.

In 1910, when he worked in the "Hardware Varela," began his involvement in the Liberal Club "Lerdo de Tejeda" next to veracruzanos young revolutionaries.

A waiver of the governorship of the State of Emilio Léycegui, given the bloody events that occurred, was appointed by the Legislature and Governor Local Constitutional Intergovernmental on June 22, 1911.

During the following months, there was a great political turmoil and could only weather the storm as it existed before the Legislature an indictment of his predecessor Emilio Léycegui by the events and the need to investigate.

He moved to the port of Veracruz and embarked bound for Havana, then to New Orleans, San Antonio and finally to El Paso, Texas.