Kazuo Aichi (愛知 和男 Aichi Kazuo, born July 20, 1937) is a Japanese politician of the Liberal Democratic Party, a member of the House of Representatives in the Diet (national legislature). A native of Ōta, Tokyo and graduate of the University of Tokyo, he was elected to the House of Representatives for the first time in 1976. After losing his seat in 2000, he retired in 2002 but was re-elected in 2005.