The was a constituency that represents Shimane Prefecture in the House of Councillors in the Diet of Japan. Councillors are elected to the house by single non-transferable vote (SNTV) for six-year terms. Since the establishment of the current House of Councillors electoral system in 1947, the district has elected two Councillors, one each at elections held every three years. With its 576,297 registered voters (as of September 2015)[1] it is the second-smallest electoral district for the house. Accordingly, a 2015 revision of the Public Officers Election Law will see the district merged with the Tottori At-large district to create the Tottori-Shimane At-large district;[2] this change will begin to take effect at the 2016 election, at which one Councillor will be elected.
The Councillor currently representing Shimane is:
| class of 1947 | election year | class of 1950 |
|---|---|---|
| (1947: 6-year term) | (1947: 3-year term) | |
| Genichiro Date (Ind.) | 1947 | Noboru Utsunomiya (Ind.) |
| 1950 | Yoshio Sakurauchi (People's Democratic) | |
| Shigeo Odachi (Liberal)[3] | 1953 | |
| Hiroshi Sano (Ind.) | 1955 by-election | |
| 1956 | Akira Kodaki (LDP)[4] | |
| 1958 by-election | Toshinaga Yamamoto (LDP) | |
| Hiroshi Sano (LDP) | 1959 | |
| 1962 | Toshinaga Yamamoto (Ind.) | |
| Hideo Nakamura (Social Democratic) | 1965 | |
| 1968 | Toshinaga Yamamoto (LDP) | |
| 1971 | ||
| 1974 | Hisaoki Kamei (LDP) | |
| Zenju Nariai (LDP) | 1977 | |
| 1980 | ||
| 1983 | ||
| 1986 | Mikio Aoki (LDP) | |
| Hisato Iwamoto (Ind.) | 1989 | |
| 1992 | ||
| Shuntaro Kageyama (LDP) | 1995 | |
| 1998 | ||
| 2001 | ||
| 2004 | ||
| Akiko Kamei (People's New) | 2007 | |
| 2010[5] | Kazuhiko Aoki (LDP) | |
| Saburo Shimada (LDP) | 2013[6] | |
| 2016 | Seat abolished | |
| Seat abolished | 2019 |