Winifred Evelyn Spooner was an English aviator of the 1920s and 1930s, and the winner of the Harmon Trophy as the world's outstanding female aviator of 1929. She died aged 32 from pneumonia.

The Harmon Trophy is a set of three international trophies, to be awarded annually to the world's outstanding aviator, aviatrix, and aeronaut. A fourth trophy, the "National Trophy," was awarded from 1926 through 1938 to the most outstanding aviator in each of the twenty-one member countries and again from 1946–1948 to honor Americans who contributed to aviation. The award was established in 1926 by Clifford B. Harmon, a wealthy balloonist and aviator.