Diego José de Cádiz (1743–1801) was a Spanish Capuchin friar who was a noted and popular preacher throughout the region of Andalusia during the 18th century.

Later his father moved the family to the city of Grazalema, where he entered the local school run by the Dominican Order.

In 1771, after further training in homiletics, he was assigned to one of the teams of friars who would preach parish missions to residents of isolated, rural villages, which was a major focus of the Capuchins of that era.

[5] Spain was undergoing changes in its intellectual climate, as the influence of the Enlightenment began to spread in the upper classes of the country.

In 1779 the University of Granada conferred upon him the honorary degrees of Master of Arts and doctorates in Theology and canon law.