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Don MacKenzie (rower) (1874–1925), Canadian rower who won a medal at the 1904 Summer Olympics •
Don MacKenzie (footballer) (born 1942), English footballer, winger for Rochdale •
D. K. A. MacKenzie (1916–1940), Scottish rugby union player •
Don McKenzie (Canadian football) (c. 1920–2001), Canadian football player •
Don McKenzie (footballer, born 1927) (1927–1987), Scottish footballer for Grimsby Town •
Don McKenzie (footballer, born 1939), Australian rules footballer with Essendon •
Don McKenzie (footballer, born 1942), Australian rules footballer and coach of Footscray •
Don McKenzie (swimmer) (1947–2008), American Olympic swimmer •
Donnie McKenzie (born 1960), British Olympic fencer •
Donald MacKenzie (archer), American archer •
Don McKenzie (curler) (born 1957), Canadian curler ==Politics==