The Yamanashi at-large district (Japanese: 山梨県全県区, Hepburn: Yamanashi-ken Zenken-ku) was a multi-member electoral district represented in the House of Representatives in the National Diet of Japan.
[1] In the 1949 Japanese general election, all three conservative candidates retained their seats, and in the 1952 Japanese general election conservative candidates held three of the five seats.
[1] Subsequently, the LDP and their conservative allies would win a majority of seats in every election afterwards until the district's dissolution.
[1] Due to the 1994 Japanese electoral reform, the at-large district was replaced with three single-member districts starting with the 1996 Japanese general election.
[3] Among the district's representatives were director-general of the Japan Defense Agency Shin Kanemaru, Minister of the Environment Sakihito Ozawa, and governor of Yamanashi Prefecture Shōmei Yokouchi.