Composition
of the House

Officers of the House
Strength of the In-House Groups in the House of Representatives
List of Members

(As of February 18, 2026)

A	B	C	D
E	F	G	H
I	J	K	L
M	N	O	P
Q	R	S	T
U	V	W	X
Y	Z

Y

Name	In-House Group	Constituency/Area
YAMADA Eri	MIRAI	Minami Kanto Bloc
YAMADA Kenji	LDP	Hyogo 7th District
YAMADA Miki	LDP	Tokyo 1st District
YAMADA Motoyasu	LDP	Hyogo 11th District
YAMAGIWA Daishiro	LDP	Kanagawa 18th District
YAMAGUCHI Shunichi	LDP	Tokushima 2nd District
YAMAGUCHI Susumu	LDP	Saitama 10th District
YAMAGUCHI Tsuyoshi	LDP	Hyogo 12th District
YAMAMOTO Daichi	LDP	Wakayama 1st District
YAMAMOTO Joji	Ind	Minami Kanto Bloc
YAMAMOTO Kanae	CRA	Kinki Bloc
YAMAMOTO Sakon	LDP	Tokai Bloc
YAMAMOTO Shin	LDP	Hiroshima 5th District
YAMAMOTO Yuzo	LDP	Shizuoka 3rd District
YAMAOKA Tatsumaru	CRA	Hokkaido Bloc
YAMASAKI Masayasu	CRA	Shikoku Bloc
YAMASHITA Shizuo	LDP	Aichi 16th District
YAMASHITA Takashi	LDP	Okayama 2nd District
YANA Kazuo	LDP	Kita Kanto Bloc
YASUOKA Hirotake	LDP	Kyushu Bloc
YOKOTA Mitsuhiro	JIP	Minami Kanto Bloc
YONAI Hiromasa	LDP	Tohoku Bloc
YOSHIDA Nobuhiro	CRA	Kyushu Bloc
YOSHIDA Shinji	LDP	Chugoku Bloc
YOSHIDA Yuri	LDP	Hokkaido Bloc
YOSHIKAWA Rina	SAN	Tokyo Bloc
YOSHIMURA Haruka	LDP	Fukuoka 10th District

Notes:
List of the In-House Groups in the House

District: Single-seat constituency
Bloc: Proportional representation area

In-House Group: A group of House Members who engage in joint activities within the House. Usually, a political party forms an in-House group inside the House, but occasionally there are cases where a group is formed by (1) House Members who do not belong to a particular political party, (2) a political party and a House Member or Members who do not belong to any political party, or (3) two or more political parties.