| Ōita at-large district | |
| Type: | Parliamentary |
| Parl Name: | House of Councillors |
| District Label: | Prefecture |
| District: | Ōita |
| Electorate: | 950,450 (as of September 2022)[1] |
| Year: | 1947 |
| Seats: | 2 |
| Member Label: | Councillors |
| Member: | Class of 2019:Class of 2022: |
Ōita at-large district is a constituency in the House of Councillors of Japan, the upper house of the Diet of Japan (national legislature). It currently elects 2 members to the House of Councillors, 1 per election. It is unique among other Kyushu conservative kingdoms for its willingness to elect opposition members. Shinya Adachi held the districts 2022 seat from 2004, and Kiyoshi Adachi held the 2016 seat until his resignation in 2023, with Tadatomo Yoshida losing the by-election after by an extremely slim margin. This is possibly due to the presence of the city of Ōita, which has shown a willingness to support opposition candidates; it was historically also represented by a second Japan Socialist Party Councilor.
1947: #1, 6 Year Term |
1947: #2, 3 Year Term | ||
|---|---|---|---|
| Jinzo Iwao (NCP) | 1947 | Masaji Hitotsumatsu (LP) | |
| 1950 | Masaji Hitotsumatsu (Yoshida LP) | ||
| Fumio Gotō (Indep.) | 1953 | ||
| 1956 | Yoshitaka Goto (LDP) | ||
| Haruzo Murakami (LDP) | 1959 | ||
| 1962 | Yoshitaka Goto (LDP) | ||
| Haruzo Murakami (LDP) | 1965 | ||
| 1968 | Yoshitaka Goto (LDP) | ||
| Ryohei Kudo (JSP) | 1971 | ||
| 1974 | Hidekazu Iwao † 1976 (LDP) | ||
| 1976 | Masao Goto (OFF) | ||
| Seishirō Etō (ATSNS) | 1977 | ||
| 1980 | Masao Goto (LDP) | ||
| Keigi Kajiwara (JSP) | 1983 | ||
| 1986 | Masao Goto (LDP) | ||
| Keigi Kajiwara (JSP) | 1989 | ||
| 1992 | Ban Kugimiya (LDP) | ||
| Keigi Kajiwara (JSP) | 1995 | ||
| 1998 | Toshiya Nakamichi (LDP) | ||
| Hiroko Goto (LDP) | 2001 | ||
| 2004 | Shinya Adachi (DPJ) | ||
| Yōsuke Isozaki (LDP) | 2007 | ||
| 2010 | Shinya Adachi (DPJ) | ||
| Yōsuke Isozaki (LDP) | 2013 | ||
| 2016 | Shinya Adachi (DP) | ||
| Kiyoshi Adachi (Indep.) | 2019 | ||
| 2022 | Harutomo Kosho (LDP) | ||
| Aki Shirasaka (LDP) | 2023 |