The Debelt Glacier (Bulgarian: ледник Дебелт, romanized: lednik Debelt, IPA: [ˈlɛdniɡ ˈdɛbɛɫt]) on Varna Peninsula, Livingston Island in the South Shetland Islands, Antarctica is situated southeast of Rose Valley Glacier and northeast of Panega Glacier.

It drains the southeastern slopes of Vidin Heights and flows into Moon Bay between Edinburgh Hill and Helis Nunatak.

The feature is named after the settlement of Debelt in Southeastern Bulgaria, successor of the ancient town of Deultum.

Registered in the SCAR Composite Antarctic Gazetteer.

This article includes information from the Antarctic Place-names Commission of Bulgaria which is used with permission.