| Horacio Sánchez Unzueta | |
| Birth Date: | 1949 4, df=y |
| Birth Place: | San Luis Potosí, Mexico |
| Death Place: | San Luis Potosí, Mexico |
| Occupation: | Lawyer Diplomat |
| Education: | Autonomous University of San Luis Potosí |
| Party: | PRI |
| Office: | Governor of San Luis Potosí |
| Term Start: | 18 May 1993 |
| Term End: | 25 September 1997 |
| Predecessor: | Teófilo Torres Corzo |
| Office2: | Member of the Chamber of Deputies of Mexico |
| Term Start2: | 1 November 1991 |
| Term End2: | 21 December 1992 |
| Predecessor2: | Antonio Sánchez Morales |
| Successor2: | Manuel Medellín Milán |
Horacio Sánchez Unzueta (17 April 1949 – 5 February 2024) was a Mexican lawyer, diplomat and politician. A member of the Institutional Revolutionary Party, he served in the Chamber of Deputies from 1991 to 1992[1] and was Governor of San Luis Potosí from 1993 to 1997.[2]
Sánchez died in San Luis Potosí on 5 February 2024, at the age of 74.[3]