Mitsunari Okamoto
岡本 三成
Official portrait, 2017
Member of the House of Representatives
Incumbent
Assumed office 21 December 2012
Preceded by	Multi-member district
Constituency	Tokyo PR (2012–2021) Tokyo 12th (2021–2024) Tokyo 29th (2024–present)
Personal details
Born	(1965-05-05) 5 May 1965 (age 59) Tosu, Saga, Japan
Political party	Komeito
Alma mater	Sōka University Northwestern University
Website	衆議院議員 岡本みつなり 公式ホームページ

Mitsunari Okamoto (born 5 May 1965) is a Japanese politician from Komeito who represents Tokyo's 29th district in the House of Representatives.^[1] Okamoto was vice minister in the Finance Ministry in the Second Kishida Cabinet. Following the 2024 Japanese general election he became the chairman of the Komeito Policy Research Council.^[2]