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.

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