Ikuo Yamahana (Japanese: 山花 郁夫, Hepburn: Yamahana Ikuo, born January 18, 1967) is a Japanese politician of the Constitutional Democratic Party of Japan, a member of House of Representatives in the Diet (national legislature). Yamahana served as Parliamentary Secretary for Foreign Affairs in the cabinet of Naoto Kan and as Deputy Justice Minister in the cabinet of Yoshihiko Noda.

Ikuo Yamahana
山花 郁夫
Member of the House of Representatives
Incumbent
Assumed office October 23, 2017
Constituency	Tokyo PR
In office August 30, 2009 – November 16, 2012
Preceded by	Tatsuya Itō
Succeeded by	Tatsuya Itō
Constituency	Tokyo-22nd
In office June 26, 2000 – August 8, 2005
Preceded by	Tatsuya Itō
Succeeded by	Tatsuya Itō
Constituency	Tokyo-22nd
Personal details
Born	山花 郁夫 (Ikuo Yamahana) (1967-01-18) January 18, 1967 (age 57) Chōfu, Tokyo, Japan
Political party	Constitutional Democratic
Other political affiliations	DP (2016–2017, split) DPJ (1998–2016, merger)
Alma mater	Ritsumeikan University

Yamahana is the son of the former chairman of the Japanese Socialist Party, Sadao Yamahana. He started his political career as a secretary to then-Diet member and future Prime Minister Yukio Hatoyama.

Yamahana has only run in Tokyo's 22nd district for all his parliamentary career and represented it several times. He lost his seat twice in the LDP landslides of 2005 and 2012. After 2 unsuccessful runs to regain his seat in 2012 and 2014, Yamahana managed to return to the Diet in the 2017 election via the Tokyo proportional representation block. While losing the race for the Tokyo-22nd seat, he gained enough votes to be returned through the CDP's list in the Tokyo block.^[1]