| 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 (GRE) |
| NOC |  Greece |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1980 Summer Olympics | Water Polo (Aquatics) | GRE |
Ioannis Giannouris | |||
| Water Polo, Men (Olympic) | Greece | 10 |
