This is a list of members of the Diet of Japan. The Diet has two chambers: the House of Councillors (upper house) and the House of Representatives (lower house). Councillors serve six year terms, with half being elected every three years. Representatives serve terms of up to four years, but the House of Representatives can be dissolved, causing a shorter term (snap election).
House of Representatives
Below are lists of representatives elected in Japanese general elections since 2003.
- Members of the House of Representatives elected in the 43rd general election (2003)
- Members of the House of Representatives elected in the 44th general election (2005)
- Members of the House of Representatives elected in the 45th general election (2009)
- Members of the House of Representatives elected in the 46th general election (2012)
- Members of the House of Representatives elected in the 47th general election (2014)
- Members of the House of Representatives elected in the 48th general election (2017)
- Members of the House of Representatives elected in the 49th general election (2021)
- Members of the House of Representatives elected in the 50th general election (2024)
- Current list: Members of the House of Representatives elected in the 51st general election (2026)
Composition
The following table lists members of the House of Representatives by constituency and as of 18 February 2026. The elected party column shows the party under which each member was elected; the parliamentary group column shows their current parliamentary group membership, which may differ.
Notes:
- 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.
{|class="wikitable"
|-
! Constituency !! Elected members !! colspan=2| Elected party !! Parliamentary group !! Notes
|-
| colspan="6" style="background:#ccf;"|
Hokkaido
12 single-member and 8 proportional representation seats.
|-
| colspan="6" style="background:#ccf;"|
Hokkaido Prefecture
|-
| Hokkaido-1st
| Takahiro Katō ||bgcolor=""| || Liberal Democratic || LDP ||
|-
| Hokkaido-2nd
| Yūsuke Takahashi ||bgcolor=""| || Liberal Democratic || LDP ||
|-
| Hokkaidō-3rd
| Hirohisa Takagi ||bgcolor=""| || Liberal Democratic || LDP ||
|-
| Hokkaidō-4th
| Hiroyuki Nakamura ||bgcolor=""| || Liberal Democratic || LDP ||
|-
| Hokkaidō-5th
| Yoshiaki Wada ||bgcolor=""| || Liberal Democratic || LDP ||
|-
| Hokkaidō-6th
| Kuniyoshi Azuma ||bgcolor=""| || Liberal Democratic || LDP ||
|-
| Hokkaidō-7th
| Takako Suzuki ||bgcolor=""| || Liberal Democratic || LDP ||
|-
| Hokkaidō-8th
| Jun Mukōyama ||bgcolor=""| || Liberal Democratic || LDP ||
|-
| Hokkaidō-9th
| Hideki Matsushita ||bgcolor=""| || Liberal Democratic || LDP ||
|-
| Hokkaidō-10th
| Hiroshi Kamiya ||bgcolor=""| || CRA || CRA ||
|-
| Hokkaidō-11th
| Kōichi Nakagawa ||bgcolor=""| || Liberal Democratic || LDP ||
|-
| Hokkaidō-12th
| Arata Takebe ||bgcolor=""| || Liberal Democratic || LDP ||
|-
| colspan="6" style="background:#ccf;"|
Hokkaido Block
|-
| Hokkaidō block
| Yoshitaka Itō ||bgcolor=""| || Liberal Democratic || LDP ||
|-
| Hokkaidō block
| Hidemichi Satō ||bgcolor=""| || CRA || CRA ||
|-
| Hokkaidō block
| Kōichi Watanabe ||bgcolor=""| || Liberal Democratic || LDP ||
|-
| Hokkaidō block
| Nagisa Muraki ||bgcolor=""| || Liberal Democratic || LDP ||
|-
| Hokkaidō block
| Tomoko Ukishima ||bgcolor=""| || CRA || CRA ||
|-
| Hokkaidō block
| Yūri Yoshida ||bgcolor=""| || Liberal Democratic || LDP ||
|-
| Hokkaidō block
| Hidetake Usuki ||bgcolor=""| || DPFP || DPFP ||
|-
| Hokkaidō block
| Tatsumaru Yamaoka ||bgcolor=""| || CRA || CRA ||
|-
| colspan="6" style="background:#ccf;"|
Tōhoku
21 single-member and 12 proportional representation seats.