List of Famous people named Koichi

Koichi Kawanishi is a Japanese drummer who is a member of the Japanese band Unicorn.

The Tokyo subway sarin attack was an act of domestic terrorism perpetrated on 20 March 1995, in Tokyo, Japan, by members of the cult movement Aum Shinrikyo. In five coordinated attacks, the perpetrators released sarin on three lines of the Tokyo Metro during rush hour, killing 14 people, injuring 5,500 people in varying degrees, and causing temporary vision problems for nearly 1,000 others. The attack was directed against trains passing through Kasumigaseki and Nagatachō, where the Diet is headquartered in Tokyo.

Koichi "Nishi" Nishimura is a beach volleyball player from Japan. Nishimura began his career as an indoor volleyball player and played Libero for the Japanese National Team. In 2002 Nishimura switched to beach volleyball. He currently plays in "Winds" beach volleyball team. In 2009, Nishimura founded the environmental non-profit-organisation "Save the Beach".

Koichi Tani is a Japanese politician serving in the House of Representatives in the Diet as a member of the Liberal Democratic Party. A native of Muraoka, Hyōgo and graduate of Meiji University he was elected for the first time in 2005.

Koichi Kobayashi is a Japanese Go player. He is one of the 'Six Supers' who championed Japanese Go in the last three decades of Japanese Go.

Koichi Mizushima (水島公一, Mizushima Kōichi, born January 30, 1941) is a Japanese researcher known for discovering lithium cobalt oxide (LiCoO₂) and related materials for the lithium-ion battery (Li-ion battery). He was affiliated with the University of Tokyo, before he went on to work for Toshiba.

Koichi Isobe is a former Nippon Professional Baseball outfielder.

Koichi Sekikawa is a former Nippon Professional Baseball outfielder.

Kōichi Morishita is a retired Japanese male long-distance runner. He competed for Japan at the 1992 Summer Olympics in Barcelona, Spain where he won the silver medal in the men's marathon event.

Koichi Sakamoto is a Japanese-born stunt actor, and producer for films and television. He is best known for his work as executive producer, as well as fight coordinator and frequent director, for the long running Power Rangers franchise.