Ziezi Peak (Bulgarian: връх Зиези, romanized: vrah Ziezi, IPA: [ˈvrɤɣ ziˈɛzi]) ia s rocky peak rising to 320 m in the southeast extremity of Breznik Heights on Greenwich Island in the South Shetland Islands, Antarctica overlooking Targovishte Glacier to the west.
The feature is named after Ziezi, the mythical grandson of Noah, from whom the Bulgars descended, according to the 354 AD Roman Chronograph of Ravenna.