Tatsuya Tanimoto (谷本 龍哉, Tanimoto Tatsuya, born October 26, 1966) is a Japanese politician serving in the House of Representatives in the Diet (national legislature) as a member of the Liberal Democratic Party. A native of Wakayama, Wakayama and graduate of the University of Tokyo, he was elected for the first time in 2005 after working as a bartender and an aide to Representative Toshihiro Nikai, and serving in the Wakayama Prefectural Assembly.