Waddington Harbour is a harbour at the head of Bute Inlet in the Central Coast region of British Columbia, Canada.[1] Also issuing into the head of Bute Inlet and Waddington Harbour, just east of the mouth of the Homathko, is the Teaquahan River.[2] Issuing directly into the inlet a few miles south on the harbour's southeast is the Southgate River,[3] one of the major rivers of the central Pacific Ranges, which begins on the west side of the Lillooet Icecap. Its lower valley adjacent to the inlet's shores is called Pigeon Valley.[4]