| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Karl Gustav Adolf•Collin |
| Used name | Gustav•Collin |
| Born | 23 May 1890 in Stockholm, Stockholm (SWE) |
| Died | 25 October 1966 (aged 76 years 5 months 2 days) in Stockholm, Stockholm (SWE) |
| Affiliations | Stockholms KK, Stockholm (SWE) |
| NOC |  Sweden |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1912 Summer Olympics | Swimming (Aquatics) | SWE |
Gustav Collin | |||
| 400 metres Freestyle, Men (Olympic) | ||||||
| 1,500 metres Freestyle, Men (Olympic) | 4 h5 r1/3 |
