| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Johan Werner•Karlsson |
| Used name | Werner•Karlsson |
| Born | 8 July 1887 in Dillnäs, Gnesta, Södermanland (SWE) |
| Died | 5 February 1946 (aged 58 years 6 months 28 days) in Stockholm, Stockholm (SWE) |
| Affiliations | Hammarby IF, Södermalm, Stockholm (SWE) |
| NOC |  Sweden |
| Medals | OG |
| Gold | 1 |
| Silver | 0 |
| Bronze | 0 |
| Total | 1 |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1912 Summer Olympics | Cycling Road (Cycling) | SWE |
Werner Karlsson | |||
| Road Race, Individual, Men (Olympic) | 19 | |||||
| Road Race, Team, Men (Olympic) | Sweden | 1 | Gold |
