Shackleton Ice Shelf is an extensive ice shelf fronting the coast of East Antarctica from 95° E to 105° E. It extends for an along-shore distance of about 384 kilometres (239 mi), projecting seaward about 145 kilometres (90 mi) in the western portion and 64 kilometres (40 mi) in the east. It occupies an area of 33,820 square kilometres (13,058 sq mi). It is part of Mawson Sea and separates the Queen Mary Coast to the west from the Knox Coast of Wilkes Land to the east.