| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Ioannis•Giannouris | |
| Used name | Ioannis•Giannouris | |
| Original name | Ιωάννης•Γιαννουρης | |
| Born | 13 January 1958 in Athina (Athens), Attiki |  GRE |
| Affiliations | NO Vouliagmeni — Athina (Athens), Attiki | GRE |
| NOC | Greece | GRE |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1980 Summer Olympics | Water Polo (Aquatics) | GRE |
Ioannis Giannouris | |||
| Water Polo, Men (Olympic) | Greece | 10 |
