Heizo Takenaka (?? ??, Takenaka Heizo, born 3 March 1951) is a Japanese economist and retired politician, last serving as Minister of Internal Affairs and Communications and Minister of State for Privatization of the Postal Services in the cabinet of Prime Minister Junichiro Koizumi.
As of July 2007, he is a professor at Keio University and an advisor for other academic institutions and companies.