| Honorific-Prefix: | Most Reverend |
| Juan Sánchez Duque de Estrada | |
| Bishop of Guadalajara | |
| Church: | Catholic Church |
| Archdiocese: | Coahuila |
| Diocese: | Guadalajara, Mexico |
| Term: | 1636–1641 |
| Predecessor: | Leonel de Cervantes y Caravajal |
| Successor: | Juan Ruiz de Colmenero |
| Birth Date: | 1581 |
| Birth Place: | Santa Cruz de la Jara, Spain |
| Death Date: | 12 November 1641 (age 60) |
| Death Place: | Mexico |
| Nationality: | Spanish |
| Coat Of Arms: | Coats of arms of Duques.svg |
Juan Sánchez y Duque de Estrada (1581 – 12 November 1641) was a Roman Catholic prelate who served as Bishop of Guadalajara (1636–1641) in Mexico.[1]
Juan Sánchez y Duque de Estrada was born in Santa Cruz de la Jara, Spain.[2] On 21 July 1636, he was nominated by King Philip IV and confirmed by Pope Urban VIII as Bishop of Guadalajara, Mexico.[2] On 23 September 1637, he was installed in the bishopric, where he served until his death on 12 November 1641.[2]