Elemag Reef (Rif Elemag \'rif 'e-le-mag\) is the 100 m long in southeast-northwest direction and 40 m wide moraine reef in Moon Bay, Livingston Island in the South Shetland Islands, with a narrow shoal extending for over 400 m eastwards.
Formed at the terminus of merging Struma and Huron Glaciers, it was originally named Elemag Point.
The current reef configuration is due to glacier retreat of up to 1.8 km in the area in the late 20th and early 21st century.
Named after Elemag, governor of Berat during the final years of the First Bulgarian Empire.
This article includes information from the Antarctic Place-names Commission of Bulgaria which is used with permission.