The Puerta de Alcala (Alcala Gate) is a monument in the Plaza de la Independencia (“Independence Square”), which is on the northwest part of El Retiro Park, on its main entrance.

Francisco Sabatini created the monument in 1778 for king Carlos III.

Madrid on the 18th Century still remained surrounded by medieval walls, so king Carlos III commissioned Sabatini to build the monumental gate, where a road that would go from Madrid to the city of Alcalá, was to pass.