Juan Francisco Molinar Horcasitas (18 December 1955 – 20 May 2015) was a Mexican politician and academic.
A member of the National Action Party (Partido Acción Nacional, PAN), he served as a federal deputy and, between 2 December 2006 and 2 March 2009, director of the Mexican Social Security Institute.
President Felipe Calderón appointed Molinar Secretary of Communications and Transport on 3 March 2009.