Raetihi is a town in the central North Island of New Zealand. It is located at the junction of State Highways 4 and 49, 11 kilometres west of Ohakune. The 2013 New Zealand Census of Population and Dwellings recorded its population as 1,002. This constitutes a decrease of 3.2% or 33 people since the 2006 census. 65.3% of residents identified as Māori, 55% European, 2.7% Pacific and 1.2% Asian (some people identified themselves in several ethnic groups and as a result percentages do not add up to 100). The Waimarino district stretches from Mount Ruapehu to the Wanganui River encompassing Raetihi, Pipiriki, Karioi, Horopito, Waiouru, Rangataua and Ohakune. There is evidence of Maori people living here in the fourteenth century. The Ngati Uenuku dwelled at Raetihi and Waimarino (now National Park). There is little evidence of large permanent settlements but hunting parties were common during warmer months.
In 1887 the Government purchased the Waimarino block from the Maori. The first European settlement was at Karioi where sheep were grazed on open tussock land.