| Roles | Competed in Intercalated Games | |
|---|---|---|
| Sex | Male | |
| Full name | Dimitrios•Siantis | |
| Used name | Dimitrios•Siantis | |
| Original name | Δημήτριος•Σιαντης | |
| Affiliations | Panellinios GS — Athina (Athens), Attiki |  GRE |
| NOC | Greece | GRE |
Personal Best: 400 – unknown.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1906 Intercalated Games | Athletics | GRE |
Dimitrios Siantis | |||
| 400 metres, Men (Intercalated) | AC h2 r1/3 |
