Taulliraju[1][2] (possibly from Quechua tawlli a kind of legume,[3] rahu snow, ice, mountain with snow,[4]) is a mountain in the Cordillera Blanca in the Andes of Peru, about 5,830 metres (19,127 ft) high[2] (other sources cite 6,303 metres (20,679 ft) of elevation).

The east buttress on the southwest face, known also as Fowler-Watts route was climbed on the 26 May 1982 and since has defeated many competent parties.

It is a serious undertaking on mixed ground, steep sections of rock (difficulty UIAA V+) with key passages at A3+ and vertical rotten ice.

The 1-km long west ridge was climbed on the 26 June 2016 by a New Zealand team comprising Pearson, McDowell, Fortune and Measures.

The route took five days round-trip from the base camp with three bivvys on the ridge, and involved difficulties up to M5, WI4 and UIAA VI-.