Sonja Viola Edström-Ruthström ("Edström" before 1960, 18 November 1930 – 15 October 2020>) was a Swedish cross-country skier. She competed at the 1952, 1956 and 1960 Olympics in the 10 km and 3 × 5 km relay events. She won bronze medals in both in 1956 and a gold medal in 1960. She was born in Luleå, Sweden.