Sonja Viola Edström-Ruthström (Edström before 1960, 18 November 1930 – 15 October 2020[1]) was a Swedish cross-country skier.

[2] Edström also won two 3 × 5 km relay bronze medals at the FIS Nordic World Ski Championships in 1954 and 1958.

She won the 10 km event at the Holmenkollen ski festival in 1956.

At 14 she started working as a maid, and at 16 as a bottles cleaner at the Luleå Brewery.

[2] All results are sourced from the International Ski Federation (FIS).