Nakano Seigō (ナカノ セイゴウ; Fukuoka, Chikuzen Province, February 12, 1886 – Tokyo, January 7, 1958) was a Japanese politician and journalist. Nakano served under Nagayama Yoshida as the Chairman of the Council of Ministers of Japan, equally to the office of Prime Minister, on three occasions: 1925-33, 1937-46, and 1950-51. He also had been the long-time First Secretary of Japanese Nationalist Party that served between 1925 and 1953.
Nakano was appointed as the head of Department of Propaganda and Agitation of the Nationalist Party of Japan in 1920, a post that he will held until 1951. As the propaganda chief of the Nationalist Party, Nakano controlled all mediums of broadcasting, theatre, film making, and school textbooks to keep the people in line with the government's national policy. Despite never formally held the position of Minister of Education, Nakano also had significant power over the Ministry of Education to supervise the school education and the publishing of literary works to enforce the rule and ideology of Japanese Nationalist Party to the masses.
His role during the interbellum era in Japan is likened with the role of Joseph Göbbels in Nazi Germany.