Pirin Glacier (Bulgarian: ледник Пирин, ‘Lednik Pirin’ \'led-nik 'pi-rin\) is the 5.7 km long and 6 km wide glacier situated next east of Chavdar Peninsula on Davis Coast on the Antarctic Peninsula. Situated west of Wright Ice Piedmont, north of Gregory Glacier and east of Samodiva Glacier. Draining north-northwestwards from Boulton Peak to enter Curtiss Bay east of Seaplane Point.
The glacier is named after Pirin Mountain in southwestern Bulgaria.
Pirin Glacier is located at 64°05′30″S 60°43′00″W / 64.09167°S 60.71667°WCoordinates: 64°05′30″S 60°43′00″W / 64.09167°S 60.71667°W. British mapping in 1978.