| Type: | Bishop |
| Honorific-Prefix: | Most Reverend |
| Ignacio Montes de Oca y Obregón | |
| Bishop of San Luis Potosí | |
| Church: | Catholic Church |
| Diocese: | Roman Catholic Archdiocese of San Luis Potosí |
| Term: | 1884 - 1921 |
| Predecessor: | José Nicanor Corona e Izarraraz |
| Successor: | Miguel María de la Mora y Mora |
| Ordination: | 28 February 1863 |
| Consecration: | 12 March 1871 |
| Consecrated By: | Pius IX |
| Birth Date: | 26 June 1840 |
| Birth Place: | Guanajuato, Guanajuato |
| Death Date: | 19 August 1921 (age 81) |
| Death Place: | New York City, United States |
José María Ignacio Montes de Oca y Obregón was a Mexican archbishop.