| Horton Glacier | |
| Map: | Antarctica |
| Mark: | Blue_pog.svg |
| Location: | Adelaide Island |
| Coordinates: | -67.55°N -98°W |
| Thickness: | unknown |
| Terminus: | Ryder Bay |
| Status: | unknown |
Horton Glacier (-67.55°N -98°W) is a glacier at the east side of Mount Barre and Mount Gaudry, flowing southeast from Adelaide Island into Ryder Bay, Antarctica. It was named by the UK Antarctic Place-Names Committee in 1977 for Colin P. Horton, a British Antarctic Survey builder at the nearby Rothera Station, 1976–77.