Digby Island is a small island immediately west of Kaien Island, and the location of the city of Prince Rupert, British Columbia. The island is home to the Prince Rupert Airport and the small community of Dodge Cove. It was named for Henry A. Digby, an officer on HMS Malacca.

Prior to European colonization, the island was occupied by the Tsimshian for thousands of years. The Tsimshian trickster, Txamsem, was believed to have been born there in the village of Kanagatsiyot, the current site of Dodge Cove.

Frederick Point at 54°15′19″N 130°21′49″W / 54.25528°N 130.36361°W / 54.25528; -130.36361 (Frederick Point) was one of the coastal defences of Canada's west coast during World War II, along with other sites around Prince Rupert. Another such installation was at Dundas Point, on the northeast side of the island at 54°19′21″N 130°24′54″W / 54.32250°N 130.41500°W / 54.32250; -130.41500 (Dundas Point).

54°17′02″N 130°25′01″W / 54.284°N 130.417°W / 54.284; -130.417