Mount Tūtoko is the highest peak in Fiordland National Park, in southwest New Zealand. It lies between the Hollyford Valley and Milford Sound, 15 kilometres due north of the Homer Tunnel at the northern end of the Darran Mountains.
The glacier-covered mountain rises to a height of 2,723 metres (8,934 ft) and is visible from the Hollyford Track. Two slightly lower summits lie just to the south of the main peak.
The first ascent of Tūtoko was by Samuel Turner and Peter Graham in 1924, climbing by way of the northwest ridge. The name of the mountain was officially gazetted as Mount Tūtoko on 21 June 2019. The mountain is thought to have been named after Tūtoko, a Maori chief who lived at Martin's Bay, close to the mouth of the Hollyford River.