| Flagstaff Glacier | |
| Map: | South Shetland Islands#Antarctica |
| Mark: | Blue_pog.svg |
| Location: | King George Island South Shetland Islands |
| Coordinates: | -62.0833°N -58.4333°W |
| Thickness: | unknown |
| Status: | unknown |
Flagstaff Glacier (-62.0833°N -84°W) is a very small glacier lying immediately north of Flagstaff Hill on Keller Peninsula, King George Island, in the South Shetland Islands. The name arose locally in about 1958 and derives from association with Flagstaff Hill.