Passu Sar is a mountain peak in the Batura Muztagh, a sub-range of the Karakoram mountain range, in the Hunza District of Gilgit-Baltistan, Pakistan. It is the high point of the Passu massif, which also includes Passu Diar. The peak lies on the main ridge of the Batura Muztagh, about 7 km (4 mi) east of Batura Sar.