Shelley Wark-Martyn (born January 11, 1963) is a former politician from Ontario, Canada. She was a New Democratic Party member of the Legislative Assembly of Ontario from 1990 to 1995. She represented the riding of Port Arthur. She served as a cabinet minister in the government of Bob Rae. Almost two decades later, she served as president of the Alberta Liberal Party stepping down in order to run in Calgary-Currie as a Liberal candidate in the 2015 provincial election.