The Lewis Chain (-80.3833°N -76°W) is a chain of four rock nunataks on the west side of Gordon Glacier in the Shackleton Range of Antarctica. It was first mapped by the Commonwealth Trans-Antarctic Expedition (CTAE) in 1957, and was photographed by the U.S. Navy (trimetrogon aerial photography) in 1967. The chain was named by the UK Antarctic Place-Names Committee for Squadron Leader John H. Lewis, Royal Air Force (RAF), senior pilot of the RAF contingent of the CTAE, 1956–58.