Ziezi Peak (Vrah Ziezi \'vr&h zi-'e-zi\) 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 the mythical grandson of Noah and progenitor of the Bulgars, ‘Ziezi ex quo Vulgares’ according to the 354 AD Roman Chronograph of Ravenna.
The peak is located at 62°32′46.2″S 59°37′30.5″W / 62.546167°S 59.625139°WCoordinates: 62°32′46.2″S 59°37′30.5″W / 62.546167°S 59.625139°W which is 1.35 km east of Viskyar Ridge, 500 m south of Drangov Peak and 430 m west of Kormesiy Peak. Bulgarian topographic survey Tangra 2004/05 and mapping in 2009.