| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Giannis•Giannoulis | |
| Used name | Giannis•Giannoulis | |
| Original name | Γιάννης•Γιαννούλης | |
| Born | 8 January 1988 in Thessaloniki, Kentriki Makedonia |  GRE |
| Measurements | 176 cm / 76 kg | |
| Affiliations | P.A.O.K. | |
| NOC | Greece | GRE |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2008 Summer Olympics | Swimming (Aquatics) | GRE |
Giannis Giannoulis | |||
| 4 × 200 metres Freestyle Relay, Men (Olympic) | Greece | 15 |
