Calvin Woodrow Ruck CM (September 4, 1925 – October 19, 2004) was an anti-racism activist and a member of the Senate of Canada. He was born in Sydney, Nova Scotia; his parents were immigrants to Canada from Barbados. Ruck's life has been documented in a book entitled Winds of Change: Life and Legacy of Calvin W. Ruck, which was penned by his granddaughter, Lindsay Ruck.