National Diet

National Diet of Japan

日本国国会

*Kokkai*
National Diet of Japan ; 日本国国会; Kokkai
213th Session of the National Diet
Type
Type	Bicameral
Houses	House of Councillors; (upper house); House of Representatives; (lower house);
Leadership
President of the House of Councillors	Hidehisa Otsuji, LDP ; since 3 August 2022
Speaker of the House of Representatives	Vacant ; since 9 October 2024
Prime Minister	Shigeru Ishiba, LDP ; since 1 October 2024
Structure
Seats	713; 248 (House of Councillors); 465 (House of Representatives);
House of Councillors political groups	Government (175) LDP (148); Kōmeitō (27); Opposition (92) CDP-SDP (40); Ishin/FEFA (21); DPFP-SR (11); JCP (11); Reiwa (5); NHK (2); Okinawa Whirlwind (2); Unaffiliated (12) Sanseitō (1); Independent (11); Vacant (2) Vacant (2);
House of Representatives political groups	Government (290) LDP (258); Kōmeitō (32); Opposition (167) CDP (99); Ishin/FEFA (44); JCP (10); DPFP (7); Yūshi no Kai (4); Reiwa (3); Unaffiliated (8) Independent (8);
Elections
House of Councillors voting system	Parallel voting:; Single non-transferable vote (147 seats); Party-list proportional representation (98 seats); Staggered elections
House of Representatives voting system	Parallel voting:; First-past-the-post voting (289 seats); Party-list proportional representation (176 seats)
Last House of Councillors election	10 July 2022 (26th)
Last House of Representatives election	27 October 2024 (50th)
Next House of Councillors election	Before 25 July 2025 (27th)
Next House of Representatives election	No later than 22 October 2028 (51th)
Meeting place
	National Diet Building, Nagatachō 1-7-1, Chiyoda District, Tokyo, Japan; 35°40′33″N 139°44′42″E / 35.67583°N 139.74500°E
Website
	House of Councillors – official website; House of Representatives – official website;

The National Diet (Japanese: 国会, Hepburn: Kokkai) is the national legislature of Japan. It is composed of a lower house, called the House of Representatives (衆議院, Shūgiin), and an upper house, the House of Councillors (参議院, Sangiin). Both houses are directly elected under a parallel voting system. In addition to passing laws, the Diet is formally responsible for nominating the Prime Minister. The Diet was first established as the Imperial Diet in 1890 under the Meiji Constitution, and took its current form in 1947 upon the adoption of the post-war constitution. Both houses meet in the National Diet Building (国会議事堂, Kokkai-gijidō) in Nagatachō, Chiyoda, Tokyo.
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