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).

He was elected to the House of Representatives for the first time in 1990 after an unsuccessful run in 1986.

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.

This article about a Japanese politician born in the 1940s is a stub.