Seiichi Eto (衛藤 晟一, Etō Seiichi, born October 1, 1947) is a Japanese politician of the Liberal Democratic Party, a member of the House of Councillors in the Diet (national legislature). A native of Ōita, Ōita and graduate of Oita University, he had served in the city assembly of Ōita for two terms since 1973 and the assembly of Ōita Prefecture for two terms since 1979. He was elected to the House of Representatives for the first time in 1990 after an unsuccessful run in 1986. In 2000 he lost the seat but was re-elected three years later. He, however, lost the seat again in 2005. In 2007 he ran for the House of Councillors and was elected.

Seiichi Eto
Member of the House of Councillors
Incumbent
Assumed office July 30, 2007 (2007-07-30)
Constituency	National PR
Member of House of Representatives from Kyushu
In office July 30, 2003 (2003-07-30) – August 8, 2005 (2005-08-08)
Constituency	Kyushu PR
Member of House of Representatives from Ōita
In office February 19, 1990 (1990-02-19) – June 2, 2000 (2000-06-02)
Preceded by	Eijiro Hata
Succeeded by	Seat Abolished
Constituency	Former 1st district (1990-1996) 1st district (1996-2000)
Minister of State for Okinawa and Northern Territories Affairs
In office September 11, 2019 (2019-09-11) – September 16, 2020 (2020-09-16)
Preceded by	Mitsuhiro Miyakoshi
Succeeded by	Taro Kono
Minister of State for Consumer and Food Safety
In office September 11, 2019 (2019-09-11) – September 16, 2020 (2020-09-16)
Preceded by	Mitsuhiro Miyakoshi
Succeeded by	Shinji Inoue
Minister of State for Declining Birth Rates
In office September 11, 2019 (2019-09-11) – September 16, 2020 (2020-09-16)
Preceded by	Mitsuhiro Miyakoshi
Succeeded by	Satoshi Sakamoto
Minister of State for Ocean Policy
In office September 11, 2019 (2019-09-11) – September 16, 2020 (2020-09-16)
Preceded by	Mitsuhiro Miyakoshi
Succeeded by	Hachiro Okonogi
Personal details
Born	(1947-10-01) October 1, 1947 (age 76) Oita, Japan
Political party	Liberal Democratic Party
Alma mater	Oita University (BEc)

In 2019 Eto entered the 4th Abe cabinet as the Minister of state for Okinawa and Northern Territories Affairs.

Eto is affiliated to the openly revisionist lobby Nippon Kaigi.^[1]