John Main (; born March 7, 1980) is a Canadian politician who has served as the seventh premier of Nunavut since 2025. He is the first non-Inuk to serve as premier. He was elected to the Legislative Assembly of Nunavut in the 2017 Nunavut general election, and represents the electoral district of Arviat North-Whale Cove.
John Main was raised in Arviat, Nunavut. In 2002, he graduated from Mount Allison University with a degree in economics.
Prior to entering politics, he worked as a television reporter for the CBC News' northern bureau, as an economic development officer with the Municipality of Arviat, and as a regional business officer with the Kitikmeot Inuit Association. He is a past president of the Kivalliq Chamber of Commerce and a former member of the board of directors of the Nunavut Development Corporation.
Main was elected to the Legislative Assembly in 2017, defeating incumbent MLA George Kuksuk. After being acclaimed to a second term in 2021, he was appointed Minister of Health and Minister responsible for Suicide Prevention and the Qulliq Energy Corporation in P.J. Akeeagok's Cabinet. Main was re-elected in the 2025 Nunavut general election, defeating Tony Uluadluak. In the 2025 leadership forum, he was elected as Premier by the Legislative Assembly, defeating David Akeeagok. As premier, Main also serves as the Minister of Finance and Intergovernmental Affairs.
He is married with three children. Main speaks fluent English and Inuktitut.