| Koshi Sobu | |
| Height: | 1.92 m |
| Birth Date: | 27 January 1959 |
| Birth Place: | Kurihara, Miyagi, Japan |
| Teamnumber: | 1 |
| Nationalyears: | 1981-1984 |
is a Japanese former volleyball player who competed in the 1984 Summer Olympics.[1] Standing 192 cm tall and weighing 81 kg. At the Olympics, the Japanese men's volleyball team, with Sobu as a member, achieved a 7th-place finish.[2] [3]