Pernik Peninsula (Bulgarian: полуостров Перник|poluostrov Pernik, in Bulgarian pronounced as /poɫuˈɔstrof ˈpɛrnik/) is the ice-covered peninsula projecting 40 km in northwest direction from Loubet Coast on the west side of Antarctic Peninsula. It is bounded by Darbel Bay to the northeast, Lallemand Fjord to the west and Crystal Sound to the northwest, and its northern part is dominated by Protector Heights.
The peninsula is named after the city of Pernik in Western Bulgaria.
Pernik Peninsula is centred at -66.7639°N -66.2°W. British mapping in 1976.