Marichal is a Spanish surname originating in the 16th century. Notable people with the surname include:
Joseph Marichal (1877–1916), French professor and survivor of Juan Marichal (born 1937), Dominican baseball player Kalimba Marichal (born 1982), Mexican singer and actor Edmundo Marichal, Chilean aviation pioneer Poli Marichal, Puerto Rican artist Nicolás Marichal, Uruguayan football player