North Harbour is a designated place in the Canadian province of Newfoundland and Labrador on St. Mary's Bay of the island of Newfoundland.
North Harbour is in Newfoundland within Subdivision X of Division No. 1.
As a designated place in the 2016 Census of Population conducted by Statistics Canada, North Harbour recorded a population of 69 living in 32 of its 61 total private dwellings, a change of from its 2011 population of 92. With a land area of , it had a population density of in 2016.