Dean Oldershaw (born August 7, 1946) is a Canadian sprint canoeist and kayaker who competed in the early to mid-1970s. At the 1972 Summer Olympics in Munich, he was eliminated in the semifinals of the K-1 1000 m and K-4 1000 m events. Four years later in Montreal, Oldershaw was eliminated in the semifinals of the K-1 500 m event.
Born in Toronto, Ontario, Canada, Oldershaw is a son of Bert Oldershaw, brother of Reed Oldershaw and Scott Oldershaw, and uncle of Mark Oldershaw, all members of Canadian Summer Olympic teams. Edit: he later coached at various clubs including the Mississauga Canoe Club.