TOGO's descendants include Minoru TOGO, his son, who was the 40th alumni of the Imperial Japanese Naval Academy to become major general (of the Imperial Japanese Navy), Ryoichi TOGO, his grandson, (who, boarding on the heavy cruiser Maya, was killed in the Battle of Leyte Gulf, and became next two ranks up from lieutenant to captain), and his great grandson, who was a line officer of the Maritime Self Defense Official, who graduated from National Defense Academy.
子孫には海軍兵学校(日本)40期生で少将になった息子の東郷実(海軍軍人)、その子で72期生の東郷良一（少尉で重巡洋艦摩耶に乗組み、比島沖海戦で戦死し2階級特進で大尉になった）、曾孫には防衛大学校卒の幹部海上自衛官がいる。