Island Harbour is a designated place in the Canadian province of Newfoundland and Labrador.
Island Harbour was founded in 1864.
Island Harbour is on Fogo Island in the Town of Fogo Island within Division No. 8.
As a designated place in the 2016 Census of Population conducted by Statistics Canada, Island Harbour recorded a population of 123 living in 59 of its 81 total private dwellings, a change of from its 2011 population of 160. With a land area of , it had a population density of in 2016.