Agustín Yáñez Delgadillo (May 4, 1904 in Guadalajara, Jalisco – January 17, 1980 in Mexico City) was a Mexican writer and politician who served as Governor of Jalisco and Secretary of Public Education during Gustavo Díaz Ordaz's presidency.

Al filo del agua (On the Edge of the Storm) is considered his most important work, according to the Encyclopedia of Latin American and Caribbean literature, 1900-2003 By Daniel Balderston, Mike Gonzalez, page 616.

He held several teaching positions throughout his life, he was a professor in the Escuela Normal para Señoritas de Guadalajara from 1923 to 1929, in the Preparatoria José Paz Camacho from 1926 to 1929, in the Preparatoria de la Universidad de Guadalajara from 1931 to 1932, in the Escuela Nacional Preparatoria from 1932 to 1953, in the UNAM from 1942 to 1953 and again from 1959 to 1962.

[3] Agustín Yáñez was a member of the Institutional Revolutionary Party (PRI).

He served as Governor of Jalisco from 1953 to 1959, undersecretary of the President of the Republic from 1962 to 1964 and Secretary of Public Education from 1964 to 1970.