The Quill Lakes is a wetland complex in Saskatchewan, Canada that encompasses the endorheic basin of three distinct lake wetlands: Big Quill Lake, Middle Quill Lake and Little Quill Lake. On May 27, 1987, it was designated a wetland of international importance via the Ramsar Convention. It was the first Canadian site in the North American Waterfowl Management Plan, is a site in the International Biological Programme and Saskatchewan Heritage Marsh Program, and was designated a Western Hemisphere Shorebird Reserve Network site of International significance in May, 1994. The site is an important staging and breeding area for spring and fall migration of shorebirds.