Ivanof Bay (Sugpiaq: Kangi'asinaq) is a census-designated place (CDP) in Lake and Peninsula Borough, Alaska, United States.

[5] Ivanof Bay is on the south side of the Alaska Peninsula at 55°54′40″N 159°29′21″W / 55.91111°N 159.48917°W / 55.91111; -159.48917 (55.911004, -159.489113).

[6] It is the farthest southwest community in the Lake and Peninsula Borough of Alaska, 13 miles (21 km) west of Perryville and 53 miles (85 km) northeast of Sand Point in the Aleutians East Borough.

According to the United States Census Bureau, the Ivanof Bay CDP has an area of 4.2 square miles (10.9 km2), all land.

[5] It sits at the north end of the bay of the same name, an arm of the Pacific Ocean.