Waddington Channel[1] is a strait located between East Redonda and West Redonda Island of the Discovery Islands in British Columbia, Canada.

Waddington Channel connects Desolation Sound to the south with Pryce Channel to the north.

Pendrell Sound branches off of the main channel to the northeast, deeply incising West Redonda Island.

[3] The northern hydrological limit of Waddington Channel delineates part of the northern limit of the Salish Sea.

[4] Notable provincial parks and protected located within Waddington Channel include: