Mary Greyeyes Reid (November 14, 1920 – March 31, 2011) was a Canadian World War II servicewoman. A Cree from the Muskeg Lake Cree Nation in Saskatchewan, she was the first First Nations woman to enlist in the Canadian Armed Forces. After joining the Canadian Women's Army Corps (CWAC) in 1942, she became the subject of an internationally famous army publicity photograph, and was sent overseas to serve in London, England, where she was introduced to public figures such as George VI and his daughter Elizabeth. Greyeyes remained in London until being discharged in 1946, after which she returned to Canada.