Mary Frizzell (later Thomasson, January 27, 1913 - October 12, 1972) was a Canadian athlete who competed in the 1932 Summer Olympics.
She was born in Nanaimo, British Columbia and died in North Vancouver.
Frizzell competed for Canada in the 1932 Summer Olympics held in Los Angeles, United States in the 4x100 metres where she won the silver medal with her team mates Mildred Fizzell, Lillian Palmer and Hilda Strike who had won the silver medal on the 100 metres. In the 100 metre event Frizzell was eliminated in the semi-finals
At the 1934 British Empire Games she finished fourth in the long jump competition.
She continued to support track and field by coaching, serving on the Amateur Women's Athletic Federation and acting as the Women's commandant for the 1954 British Empire Games (Commonwealth Games).
Mary died from cancer in 1972, aged 59.
In May 2007 Mary Frizzell (Thomasson) was inducted posthumously into the British Columbia Sports Hall of Fame as a Pioneer http://www.bcsportshalloffame.com/.