| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Ion•Constantin |
| Used name | Ion•Constantin |
| Born | 23 August 1929 |
| Affiliations | Dinamo București, București (ROU) |
| NOC | Romania |
Ion Constantin of Dinamo București was a sergeant in the Romanian Armed Forces and competed in the equestrian jumping event at the 1952 Helsinki Olympics, finishing 48th in the individual standings.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1952 Summer Olympics | Equestrian Jumping (Equestrian) | ROU |
Ion Constantin | |||
| Individual, Men (Olympic) | Vagabond | 48 | ||||
| Team, Men (Olympic) | Vagabond / Romania | 13 |