Sheldon Glacier () is a glacier flowing southeast from Mount Mangin into Ryder Bay, Adelaide Island, Antarctica. Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1977 for Ernest B. Sheldon, British Antarctic Survey (BAS) meteorological observer, Adelaide Station, 1968âÂÂ69, and Stonington Island, 1969âÂÂ70; Base Commander, Adelaide Station, 1975âÂÂ76, and Rothera Station, 1976âÂÂ77.
Prior to 1977, the glacier was called "Crumbles Glacier".