List of members of the Diet of Japan

House of Representatives

Composition

• LDP
• Kōmeitō
• CDP
• DPFP
• JCP
• Nippon Ishin
• Group of Independents
• SDP
• Kibo
• Independents

• Not all members of a parliamentary group are necessarily members of the associated party/parties if any, and vice versa. For example, the Speaker and Vice-Speaker of the House of Representatives are independents in terms of parliamentary group membership, but not independents in terms of party membership.
• The count of terms as given by the House of Representatives follows the usual way of counting them in Japan by number of won elections which is not necessarily identical to election periods of the House of Representatives. For example, former member Nobutaka Machimura served for two terms as a member during the 45th election period of the House of Representatives: one as member for the Hokkaidō proportional constitutency from the general election in August 2009 to his resignation in September 2010, and one as member for constituency number 5 in Hokkaidō from the by-election in October 2010 to dissolution in November 2012. Among other things, the election count determines the seating within a parliamentary group, the more senior members by this measure sit in the back.
• Most proportional members of the House of Representatives have been deleted.

  Hokkaido

Tōhoku

Aomori Prefecture

Iwate Prefecture

Miyagi Prefecture

Akita Prefecture

Yamagata Prefecture

Fukushima Prefecture

North Kanto(Kita Kanto)

Ibaraki Prefecture

Tochigi Prefecture

Gunma Prefecture

Saitama Prefecture

South Kanto(Minami Kanto)

Chiba Prefecture

Kanagawa Prefecture

Yamanashi Prefecture

Tokyo

Hokuriku Shin'etsu

Niigata Prefecture

Toyama Prefecture

Ishikawa Prefecture

Fukui Prefecture

Nagano Prefecture

Tokai

Gifu Prefecture

Shizuoka Prefecture

Aichi Prefecture

Mie Prefecture

Kinki

Shiga Prefecture

Kyoto Prefecture

Osaka Prefecture

Hyogo Prefecture

Nara Prefecture

Wakayama Prefecture

Chugoku

Tottori Prefecture

Shimane Prefecture

Okayama Prefecture

Hiroshima Prefecture

Yamaguchi Prefecture

Shikoku

Tokushima Prefecture

Kagawa Prefecture

Ehime Prefecture

Kochi Prefecture

Kyushu

Fukuoka Prefecture

Saga Prefecture

Nagasaki Prefecture

Kumamoto Prefecture

Oita Prefecture

Miyazaki Prefecture

Kagoshima Prefecture

Okinawa Prefecture

Kyushu Block

House of Councillors

• LDP
• Kōmeitō
• CDP
• DPFP
• Ishin
• JCP
• Reiwa
• SDP
• PPPNHK
• Independents

• Not all members of a caucus are also members of the affiliated party, and sometimes even some members of a party are not member of the affiliated caucus.
• The N→S column allows to sort by prefecture from North to South in the order generally used in Japan.
• Due to a 2015 reapportionment, some districts are represented by an uneven number of members until the regular 2019 election, when it becomes effective in both halves.