| Tadamori Ōshima | |
| Native Name Lang: | ja |
| Order: | Speaker of the House of Representatives |
| Deputy: | |
| Term Start: | 21 April 2015 |
| Term End: | 14 October 2021 |
| Predecessor: | Nobutaka Machimura |
| Successor: | Hiroyuki Hosoda |
| Office1: | Minister of Agriculture, Forestry and Fisheries |
| Primeminister1: | Junichiro Koizumi |
| Term Start1: | 30 September 2002 |
| Term End1: | 1 April 2003 |
| Predecessor1: | Tsutomu Takebe |
| Successor1: | Yoshiyuki Kamei |
| Office2: | Minister of Education and Director-General of the Science and Technology Agency |
| Primeminister2: | Yoshirō Mori |
| Term Start2: | 4 July 2000 |
| Term End2: | 5 December 2000 |
| Predecessor2: | Hirofumi Nakasone |
| Successor2: | Nobutaka Machimura |
| Office3: | Director-General of the Environmental Agency |
| Primeminister3: | Tomiichi Murayama |
| Term Start3: | 8 August 1995 |
| Term End3: | 11 January 1996 |
| Predecessor3: | Sohei Miyashita |
| Successor3: | Sukio Iwatare |
| Office4: | Deputy Chief Cabinet Secretary |
| Primeminister4: | Toshiki Kaifu |
| Term Start4: | 2 February 1990 |
| Term End4: | 5 November 1991 |
| Predecessor4: | Takao Fujimoto |
| Successor4: | Motoji Kondo |
| Birth Date: | 6 September 1946 |
| Birth Place: | Hachinohe, Japan |
| Party: | Liberal Democratic Party |
| Alma Mater: | Keio University |
is a Japanese politician served as the Speaker of the House of Representatives of Japan from 2015 to 2021. A member of the Liberal Democratic Party, he previously served as the Minister of Agriculture, Forestry and Fisheries, and the Minister of Education, Culture, Sports, Science and Technology. He is affiliated to the revisionist lobby Nippon Kaigi.[1] [2]
A native of Hachinohe, Aomori and graduate of Keio University, he worked at the national newspaper Mainichi Shimbun from 1970 to 1974, and was elected to the Aomori Prefectural Assembly in 1975. He was elected to the House of Representatives for the first time in 1983 after an unsuccessful run in 1980.
After his political career, he was appointed as a member of the Yokozuna Deliberation Council in January 2023.[3]
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