| Type: | Archbishop |
| Honorific-Prefix: | His Excellency, The Most Reverend |
| Gustavo Garcia-Siller | |
| Honorific-Suffix: | M.Sp.S. |
| Archbishop of San Antonio | |
| Archdiocese: | San Antonio |
| Appointed: | October 14, 2010 |
| Enthroned: | November 23, 2010 |
| Predecessor: | José Horacio Gómez |
| Motto: | Ven Holy Spirit ven (Come Holy Spirit, come!) |
| Ordination: | June 22, 1984 |
| Consecration: | March 19, 2003 |
| Consecrated By: | Francis George, Raymond E. Goedert, and Ricardo Watty Urquidi |
| Birth Date: | 21 December 1956 |
| Birth Place: | San Luis Potosí, Mexico |
| Gustavo Garcia-Siller | |
| Dipstyle: | |
Gustavo Garcia-Siller, M.Sp.S. (born December 21, 1956) is a Mexican-American prelate of the Catholic Church. He has been serving as archbishop of the Archdiocese of San Antonio in Texas since 2010. He served as an auxiliary bishop of the Archdiocese of Chicago in Illinois from 2003 to 2010.
The eldest of fifteen children,[1] Gustavo Garcia-Siller was born on December 21, 1956, in San Luis Potosí, Mexico. He entered the Missionaries of the Holy Spirit religious order in Mexico City in 1973.[2] The Missionaries sent him to the United States in 1980 to minister to migrant workers in California.[3] He also studied at St. John's Seminary in Camarillo, California, obtaining Master of Divinity and Master of Theology degrees.
Garcia-Siller was ordained to the priesthood for the Missionaries Order on June 22, 1984.[4] The Missionaries then assigned him as an associate pastor at St. Joseph Parish in Selma, California until 1988. He then furthered his studies at the Western Institute of Technology and Higher Education (ITESO) in Guadalajara, Mexico, earning a Master of Arts in psychology, and at the Pontifical Gregorian University in Rome.[5]
Returning to the United States in 1990, Garcia-Siller was named as rector of the Holy Spirit Missionaries' houses of studies in Lynwood and Long Beach, California, and in Portland, Oregon. On December 15, 1998, Garcia-Siller became a citizen of the United States.[6]
In 1999, Garcia-Siller was appointed rector of the Missionaries theologate in Oxnard, California, also serving pastoral roles in three parishes of the Archdiocese of Los Angeles. The Missionaries named him as superior of their vicariate for the United States and Canada in 2002.
On January 24, 2003, Garcia-Siller was appointed auxiliary bishop of Chicago and Titular Bishop of Oescus by Pope John Paul II.[4] He received his episcopal consecration on March 19, 2003, at Holy Name Cathedral in Chicago from Cardinal Francis George, with Bishops Raymond E. Goedert and Ricardo Urquidi serving as co-consecrators.[4] As an auxiliary bishop, Garcia-Siller served as episcopal vicar for Vicariate V and the Cardinal's liaison to the Hispanic community.[5]
On October 14, 2010, Pope Benedict XVI named Garcia-Siller to succeed José Gómez as Archbishop of San Antonio. His installation took place on November 23, 2010. Along with Gómez, he is one of the highest-ranking Mexican-American bishops in the United States.
In March 2024, Garcia-Siller banned the Mission of Divine Mercy (MDM), a Catholic retreat house in New Braunfels, Texas, and the priest who was running it. MDM had refused to delete a posting on its website in which a member said that God told him Pope Francis was a "usurper" and an "enemy of the Church".[7]