Abram Ernest (Ernie) Epp (born September 28, 1941) is a Canadian historian and former politician. Currently a professor of Canadian and environmental history at Lakehead University in Thunder Bay, Ontario, he represented the electoral district of Thunder Bay—Nipigon in the House of Commons of Canada from 1984 to 1988 as a member of the New Democratic Party. He defeated Liberal incumbent Jack Masters in the 1984 Canadian federal election to represent the seat and lost it to Liberal challenger Joe Comuzzi in 1988.
As a historian, his publications include From Rivalry to Unity: A History of Thunder Bay (1995) and The North American Fur Trade: Pivotal Interpretations (1995).