Horacio Casarín Garcilazo (25 May 1918 – 10 April 2005) was a Mexican football player and coach who established himself as one of his country's most popular sports figures in the 1940s and 50's.
A symbol for Atlante, the team Casarín served for the majority of his career, the skilled forward also played for Necaxa, Leon, Asturias, Club América, Real España, CF Monterrey and Zacatepec in his country, as well as FC Barcelona in Spain and the Selección de fútbol de México (Mexico national team).