Kerley's Harbour was a small outport village on Trinity Bay, Newfoundland and Labrador, Canada. Kerley's Harbour was formerly called Careless Harbour. The first recorded settlement of Kerley's Harbour was in the 1845 Newfoundland census, with a population of 40. However, the community existed long before this time as William Maher married Flora Jeans on October 15, 1821 in Careless Harbour as it is recorded in the Roman Catholic records. The population reached a peak of 90 residents in 1935. The main settlers of the community were Millers, Ivanys, Kings and Clarkes.