Mitre Peak is a mountain in the South Island of New Zealand.
Mitre Peak is set on the boundary shared by the Marlborough and Canterbury Regions of the South Island. It is located 43 kilometres north of the town of Kaikà Âura, where it is part of the Inland Kaikà Âura Range. Precipitation runoff from the mountain's southeast slope drains to the Waiau Toa / Clarence River via Muzzle Stream, whereas the northeast slope drains to the Hodder River, and the west slope drains to the Winterton River. Topographic relief is significant as the west slope rises in 1.5 kilometre. The nearest higher neighbour is Mount Alarm, 2.4 kilometres to the east. The first ascent of the summit was made in January 1895 by Alexander, Fowler, Neville, and Moore via the North East Couloir. The South East Ridge was first climbed in January 1969 by John Nankervis, Ross Gooder, and Bob Gunn. This mountain's toponym has been officially approved by the New Zealand Geographic Board. This peak should not be confused with the Mitre Peak at Milford Sound.
Based on the Köppen climate classification, Mitre Peak is located in a marine west coast climate zone (Cfb). Prevailing westerly winds blow moist air from the Tasman Sea onto the mountain, where the air is forced upwards by the mountains (orographic lift), causing moisture to drop in the form of rain and snow. The months of December through February offer the most favourable weather for viewing or climbing this peak.