Tokushima At-large district (徳島選挙区 Tokushima senkyoku) is a constituency of the House of Councillors in the Diet of Japan (national legislature). It consists of Tokushima Prefecture and elects two Councillors, one every three years by a first-past-the-post system for a six-year term. In the first election in 1947, Tokushima like all districts used single non-transferable vote to elect both its Councillors in one election.
Single-member districts (ichinin-ku) for the House of Councillors often play a decisive role for the outcome of elections as little swing in votes is required to achieve a change of the Councillors elected there. Tokushima in predominantly rural Shikoku has for decades voted for candidates from the Liberal Democratic Party (LDP) or ex-LDP conservative independents by large margins. In the landslide election of 1989 that left the LDP-led government without a majority in the House of Councillors for the first time, a so-called "twisted parliament" (nejire kokkai), Harumi Inui from RENGO trade union federation's Rengō no Kai could win Tokushima against incumbent Tomoyoshi Kamanaga by a margin of 60.000 votes.
| class of 1947 | election year | class of 1950 |
|---|---|---|
| #1 (1947: #1, 6-year term) |
#1 (1947: #2, 3-year term) |
|
| Yojin Akazawa (Kakushin Kyōdō, "Progressive Cooperation")[1] |
1947[2] | Makio Kishino (Indep.)[3] |
| 1947 by-el.[4] | Mitsu Kōro (DP) | |
| 1950[5] | ||
| Yokichirō Miki (Indep.) | 1953[6] | |
| 1956[7] | Mitsu Kōro (LDP) | |
| Yokichirō Miki (LDP) | 1959[8] | |
| 1962[9] | ||
| 1965[10] | ||
| 1968[11] | Kentarō Kujime (LDP) | |
| Kōshō Ogasa (Indep.) | 1971[12] | |
| 1974[13] | Kentarō Kujime (Indep.) | |
| Tomoyoshi Kamenaga (LDP) | 1977[14] | |
| 1980[15] | Ken Naitō (LDP) | |
| 1983[16] | ||
| 1986[17] | Kōji Matsuura (LDP) | |
| Harumi Inui (Rengō no Kai) | 1989[18] | |
| 1992[19] | ||
| Shūji Kitaoka (LDP) | 1995[20] | |
| 1998[21] | Kiseko Takahashi (Indep.)[22] | |
| 2001[23] | ||
| 2004[24] | Masakatsu Koike (LDP) | |
| Tomoji Nakatani (DPJ) | 2007[25] | |
| 2010[26] | Yūsuke Nakanishi (LDP) |