| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Ioannis•Papastefanou |
| Used name | Ioannis•Papastefanou |
| Original name | Ιωάννης•Παπστεφανου |
| Affiliations | NO Patra, Patra (GRE) |
| NOC |  Greece |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1948 Summer Olympics | Water Polo (Aquatics) | GRE |
Ioannis Papastefanou | |||
| Water Polo, Men (Olympic) | Greece | =13 |
