Duke of Medina de las Torres (Spanish: Duque de Medina de las Torres) is a hereditary title in the Peerage of Spain, accompanied by the dignity of Grandee and granted in 1625 by Philip IV to Gaspar de Guzmán, 3rd Count of Olivares and royal favourite to the king.

[2][3] A few days later, the king granted him the Dukedom of Sanlúcar la Mayor.

The title was created in favor of the first holder to endow his only daughter and heir, María de Guzmán y Zúñiga, to marry Ramiro Núñez de Guzmán, 2nd Marquess of Toral.

Upon the death of his daughter, he asked the king to accept his resignation from the dukedom and that it be granted to his son-in-law, who became the 2nd Duke of Medina de las Torres.

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