 
| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | John Waldemar "Johan"•Mattsson | 
| Used name | Johan•Mattsson | 
| Born | 4 November 1894 in Fjelie, Lomma, Skåne (SWE) | 
| Died | 1 September 1969 in Malmö, Skåne (SWE) | 
| Affiliations | MAI, Malmö (SWE) | 
| NOC |  Sweden | 
Personal Best: PV - 3.81 (1920).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1920 Summer Olympics | Athletics |  SWE | Johan Mattsson | |||
| Pole Vault, Men (Olympic) | =8 |