Mark Oldershaw (born February 7, 1983) is a Canadian sprint canoeist.
Oldershaw won the bronze medal in the C-1 1000 m at the 2012 Summer Olympics in London.
He is a third generation Canadian Olympic canoer, fifth family member to compete at the Olympics and the first member of the family to win an Olympic medal.
He was a double Junior World Champion in the C-1 500 m and C-1 1,000 m in 2001.