Rosella Thorne (born 11 December 1930) is a Canadian sprinter.
She competed in the women's 100 metres at the 1952 Summer Olympics.
She also competed in the 1950 British Empire Games and finished fifth in the high jump, seventh in the long jump, and was eliminated in the heats of the 80 metres hurdles.
In the 1954 British Empire and Commonwealth Games long jump she finished fourth.