| Personal information | |
|---|---|
| Nationality | Japanese |
| Born | August 3, 1915 Numazu, Shizuoka, Japan |
| Died | August 3, 1998 (aged 83) |
| Sport | |
| Sport | Swimming |
| Event(s) | 200-meter Breaststroke |
| Olympic medal record | ||
|---|---|---|
| Competitor for Japan | ||
| Men's Swimming | ||
| Silver | 1932 Los Angeles | 200 m breaststroke |
| Bronze | 1936 Berlin | 200 m breaststroke |
Reizo Koike (小池 禮三 Koike Reizō, December 12, 1915 - August 3, 1998) was a Japanese breaststroke swimmer. He won silver medal for the Men's 200 meter breaststroke in the 1932 Summer Olympics in Los Angeles and the bronze medal for the 200 meter breaststroke in the 1936 Summer Olympics in Berlin. In between these events, he attended Keio University in Tokyo, where he set a world record for the 200 meter breaststroke.
Koike was born in Numazu, Shizuoka, Japan. After the end of World War II, Koike became a coach for the Japanese national Olympic swimming team and chairman of the Japan Swimming Federation. He was present in Barcelona during the 1992 Summer Olympics, when Kyoko Iwasaki won the gold medal. He died of lung cancer in 1998.