Sonja Johnsson

{{Short description|Swedish swimmer (1895–1986)}}

{{Use dmy dates|date=April 2025}}

{{Infobox swimmer|

| name=Sonja Johnsson

| image=Sonja Johnsson SOK.jpg

| imagesize=

| caption =

| fullname = Sonja Sofia Valfrida Johnsson

| nicknames =

| nationality = Swedish

| strokes = Freestyle

| club = Stockholms KK

| collegeteam =

| birth_date = {{Birth date|df=yes|1895|8|7}}

| birth_place = Stockholm, Sweden

| death_date = {{death date and age|df=yes|1986|6|18|1895|8|7}}

| death_place = Stockholm, Sweden

| height =

| weight =

| medaltemplates=

}}

Sonja Sofia Valfrida Johnsson (later Dymling, 7 August 1895 – 18 June 1986) was a Swedish freestyle swimmer who competed in the 1912 Summer Olympics.{{cite web|url=https://www.olympedia.org/athletes/50263 |title=Sonja Johnsson |publisher=Olympedia |access-date=7 June 2021}} 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.