It is named after Czar Kaloyan of Bulgaria, 1197-1207 AD.
Kaloyan Nunatak rises to approximately 400 m in Delchev Ridge, Tangra Mountains, on eastern Livingston Island in the South Shetland Islands, Antarctica.
The peak surmounts Pautalia Glacier to the south, and Sopot Ice Piedmont to the west, north, and northeast.
It was mapped in 2005 and 2009 from the Tangra 2004/05 topographic survey, and has since been registered in the SCAR Composite Antarctic Gazetteer.
This article includes information from the Antarctic Place-names Commission of Bulgaria which is used with permission.