Kolobar Nunatak (Bulgarian: Колобърски нунатак, ‘Kolobarski Nunatak’ \ko-'lo-b&r-ski 'nu-na-tak\) is the rocky hill rising to 587 m in the southwest part of Cugnot Ice Piedmont on Trinity Peninsula in Graham Land, Antarctica.
The nunatak is named after the settlement of Kolobar in Northeastern Bulgaria.
Kolobar Nunatak is located at , which is 3.59 km northeast of Panhard Nunatak, 4.29 km southeast of Chochoveni Nunatak and 5.66 km southwest of Levassor Nunatak. German-British mapping in 1996.
This article includes information from the Antarctic Place-names Commission of Bulgaria which is used with permission.