Queen Charlotte Sound is part of the Inside Passage shipping route. Queen Charlotte Sound is a sound of the Pacific Ocean in British Columbia, Canada, between Vancouver Island in the south and Haida Gwaii in the north. It merges with Hecate Strait in the north and Queen Charlotte Strait in the south. The sound feeds into a series of straits that once were avenues followed by the continental glaciers as they pushed out to sea.
The northern boundary of Queen Charlotte Sound is defined as a line running from the southernmost point of Price Island to Cape St James on Kunghit Island, the southernmost point of Haida Gwaii. The western boundary is a line from Cape St James to Cape Scott at the north end of Vancouver Island. The southern boundary runs along the coast of Vancouver Island from Cape Scott to Cape Sutil, then to Cape Caution on the mainland.