|Minister of Finance|
26 September 2006 – 26 September 2007
|Prime Minister||Shinzo Abe|
|Preceded by||Sadakazu Tanigaki|
|Succeeded by||Fukushiro Nukaga|
|Head of the Economic Planning Agency|
|Prime Minister||Ryutaro Hashimoto|
|Preceded by||Taro Aso|
|Succeeded by||Taichi Sakaiya|
14 December 1932|
Numata, Gunma, Japan
|Political party||Liberal Democratic Party|
|Alma mater||Hitotsubashi University|
Omi was born in Numata, Gunma Prefecture and graduated with a degree in Commerce from Hitotsubashi University. He joined the Ministry of International Trade and Industry and later served as consul general of Japan in New York City and as Director of the Small Business Administration. He resigned from the bureaucracy in 1982 to run for office, and was elected to the Diet of Japan in 1983.
Omi was appointed as Director of the Economic Planning Agency in 1997 and briefly as a state minister under Junichiro Koizumi in 2001. He was on a mission to the United States during the September 11, 2001 attacks. He was Minister of Science and Technology 2001–2002. He was appointed Minister of Finance on 26 September 2006.He was conferred an Honorary Doctorate in Public Service by the University of Cambodia in 2007 and by the Okinawa Institute of Science and Technology in 2018.
- "Welcome to The University of Cambodia (UC)". uc.edu.kh. Retrieved 2018-05-10.
- Japan's Abe Unexpectedly Names Omi Finance Minister, Bloomberg.com, 26 September 2006.
- Omi, Koji (22 December 2014). "Constructing a Global Science Forum". Science & Diplomacy. 3 (4). Retrieved 18 June 2015.
|Wikimedia Commons has media related to Kōji Omi.|
| Head of the Economic Planning Agency
| Minister of State for Science and Technology Policy
| Minister of State for Okinawa and Northern Territories Affairs|
| Minister of Finance of Japan
|House of Representatives of Japan|
| Chair, Financial Affairs Committee of the House of Representatives of Japan