Letnitsa Glacier (Bulgarian: ледник Летница, ‘Lednik Letnitsa’ \'led-nik 'let-ni-tsa\) is a 1.8 km long glacier on Smith Island in the South Shetland Islands, Antarctica draining the southeast slopes of Imeon Range east of Organa Peak and south of Riggs Peak. It is situated southwest of Gramada Glacier and northeast of Kremena Ice Piedmont, and flows southeastward into Hisarya Cove, Osmar Strait.