Keishu Tanaka (田中 慶秋, Tanaka Keishū, 6 March 1938 – 4 January 2022) was a Japanese politician, who served in the House of Representatives in the Diet (national legislature) as a member of the Democratic Party.

[1] On 4 October 2012, Tanaka said that a local branch of the DPJ he heads in Kanagawa prefecture had received 420,000 yen in donations from 2006 to 2009 from a company run by Taiwanese.

[2] On 11 October 2012, the weekly magazine Shukan Shincho reported that 30 years ago Tanaka had connections to a group affiliated to the Inagawa-kai yakuza syndicate, that he had made an appearance and made a speech at a party hosted by a yakuza boss, and that he had also acted as a matchmaker for an executive member of the group.

[4] The opposition had demanded that he explain his actions to an upper house panel on 18 October 2012.

He was checked into Tokai University Tokyo Hospital complaining of chest pains.