Mary Spencer (born December 12, 1984) is a Canadian boxer who competes as a 75 kilogram middleweight. She has won three World Championships, one Pan American Games gold medal, and eight Canadian Championships. Spencer's athletic career started early competing in multiple sports as a child including; Basketball, Volleyball, Soccer, and Track and field. Spencer began serious boxing training in 2002 and now trains at the Windsor Amateur Boxing Club under Coach Charlie Stewart. As of July 26, 2011, her amateur record is 115 wins, 9 losses. Spencer was born in Wiarton, Ontario and currently lives in Windsor, Ontario. She is a member of the Chippewas of Nawash Unceded First Nation. Women's boxing was a part of the Olympic Games program for the first time in London in 2012. Spencer obtained an endorsement deal with CoverGirl. The company has donated more than $140,000 to support her in her quest for gold in London 2012 Summer Olympics Spencer was considered a medal favourite, and one of Canada's best hopes in women's boxing. She lost her first bout to China's Li Jinzi. She was a Indspire Award recipient in the sports category in 2014. Spencer was awarded the 2019 Randy Starkman Award by the Canadian Olympic Committee.