St. Sava Peak (, ) is the rocky, partly ice-free peak rising to 872 m in Poibrene Heights on Oscar II Coast, Graham Land in Antarctica. It is overlooking Vaughan Inlet to the east-northeast.
The feature is named after the Bulgarian scholar St. Sava Sedmochislenik (9-10th century AD), a disciple of St. Cyril and St. Methodius.
St. Sava Peak is located at , which is 4.9 km north-northwest of Ravnogor Peak, 3.8 km southeast of Kamenov Spur and 12.9 km west-northwest of Whiteside Hill.