Farwell Island is an ice-covered island, about long and wide, lying between McNamara Island and Dendtler Island in the eastern part of the Abbot Ice Shelf in Antarctica. . The feature was positioned by parties from the USS Glacier and USS Staten Island in February 1961, and was mapped by the United States Geological Survey from U.S. Navy air photos of 1966. It was named by the Advisory Committee on Antarctic Names for Captain A.F. Farwell, Chief of Staff to the Commander, U.S. Naval Support Force, Antarctica, during Operation Deep Freeze 1968 and 1969.