Tamayo Marukawa (丸川 珠代, Marukawa Tamayo, born 19 January 1971) is a Japanese politician and former announcer of TV Asahi, who served as a member of the House of Councillors from 2007 to 2024. She is a member of the Liberal Democratic Party. She served as the head of the Women's Affairs Office of the LDP in October 2009. She graduated from the University of Tokyo with the Bachelor of Economics degree in 1993. The 2007 House of Councillors election marked her entry into politics. The documentary film "Pictures at an Election" covers some of her campaign. She is married to Taku Otsuka (a member of the House of Representatives). Their wedding ceremony was held in Meiji Shrine on 16 June 2008. They have one child. Marukawa has served twice as Minister of State for the Tokyo Olympic and Paralympic Games. She first served in the role under Prime Minister Shinzo Abe from August 2016 until August 2017. She was named to the post a second time by Yoshihide Suga on 18 February 2021 to replace fellow LDP lawmaker and former Olympian Seiko Hashimoto, who had resigned from her Cabinet post in order to take over as President of the Tokyo 2020 Organizing Committee. Marukawa stood as the LDP candidate for the Tokyo 7th district in the October 2024 House of Representatives election, intending to switch houses. She thus automatically lost her seat in the House of Councillors when the election was announced. Marukawa was defeated in the election. She was affiliated with the nationalist organisation Nippon Kaigi.