Luís Vélez de Guevara (August 1, 1579 - November 10, 1644), Spanish dramatist and novelist, was born at Ecija.
After graduating as a sizar at the university of Osuna in 1596, he joined the household of Rodrigo de Castro, cardinal-archbishop of Seville, and celebrated the marriage of Philip II in a poem signed Vélez de Santander, a name which he continued to use till some years later.
He appears to have served as a soldier in Italy and Algiers, returning to Spain in 1602 when he entered the service of the count de Saldana, and dedicated himself to writing for the stage. He died at Madrid on the 10th of November 1644.
He was the author of over four hundred plays, of which the best are Reinar despues de morir, Más pesa el rey que la sangre, La Luna de la Sierra and El Diablo está en Cantillana; but he is most widely known as the author of El Diablo cojuelo (1641), a fantastic novel which suggested to Le Sage the idea of his Diable boiteux.