Koichiro Koga (古賀 幸一郎, Koga Kōichirō; born (1984-08-30)30 August 1984) is a retired Japanese male volleyball player. He was a part of the Japan men's national volleyball team. On club level, he played for Toyoda Gosei Trefuerza and then Wolf Dogs Nagoya. His retirement was announced on March 7, 2021.
Source: “Koichiro Koga”, English Wikipedia (CC BY-SA 4.0), excerpt
