Mary Jane Logan (née Mitchell; 26 November 1912 â 26 March 2007) was a New Zealand athlete. Mainly remembered as a javelin thrower, she represented her country at the 1938 British Empire Games in Sydney, where she finished fourth in the women's javelin with a best throw of .
In 1939, she won the inaugural women's javelin throw at the New Zealand athletics championships, with a winning distance of . She won the national title again in 1940 and 1941, and her distance of in 1940 remained the championship record until surpassed by Cleone Rivett-Carnac in 1952. At the Auckland women's championships in 1941, Mitchell broke her own New Zealand record with a throw of . She also at one time held the New Zealand women's long jump record, and was a competent high jumper, winning the Auckland championship in 1936.
Mitchell was also known for her kauri carving, as an artist, a poet and a horsewoman. She died in Dargaville in 2007.