Cape Chidley is a headland located on the eastern shore of Killiniq Island, Canada, at the northeastern tip of the Labrador Peninsula.

The northern and western part of Killiniq Island (under Nunavut's jurisdiction) drains into Ungava Bay and the Hudson Strait.

The cape marks the south end of the entrance to the Hudson Strait, opposite Resolution Island.

Killiniq Island itself is separated from mainland North America by the narrow McLelan Strait.

The Torngat Mountains run along the coast of Labrador and terminate at Killiniq Island.