Sonja Johnsson
| Personal information | |
|---|---|
| Full name | Sonja Sofia Valfrida Johnsson |
| Nationality | Swedish |
| Born | 7 August 1895 Stockholm, Sweden |
| Died | 18 June 1986 (aged 90) Stockholm, Sweden |
| Sport | |
| Sport | Swimming |
| Strokes | Freestyle |
| Club | Stockholms KK |
Sonja Sofia Valfrida Johnsson (later Dymling, 7 August 1895 – 18 June 1986) was a Swedish freestyle swimmer who competed in the 1912 Summer Olympics. She was eliminated in the first round of the 100 m event and finished fourth with the Swedish 4 × 100 m team.
Her nephew Stein competed for Norway in the discus throw at the 1948 and 1952 Olympics.