The Mazeno Ridge is an arête, a long narrow ridge, and part of the Nanga Parbat massif in Gilgit–Baltistan, Pakistan, in the Himalayan range. The ridge is the longest of any ridge on the eight-thousander peaks in the Himalayas. A series of eight subsidiary peaks form the ridge, the highest being Mazeno Peak at 7,120 metres (23,360 ft). All eight subsidiary peaks have been climbed, but a complete traverse of the ridge and ascent of Nanga Parbat was only successfully achieved in 2012, and as of 2019, no other expedition has reached the summit of Nanga Parbat via the Mazeno Ridge.