Cape Lisburne is a cape located at the northwest point of the Lisburne Peninsula on the Chukchi Sea coast in Alaska. It is 40 miles (64 km) northeast of the village of Point Hope, part of the Arctic Slope. It is a part of the Chukchi Sea unit of Alaska Maritime National Wildlife Refuge. It is the northwesternmost point of land in Alaska, North America, and based on the International Date Line the world.