Waimarino is a former New Zealand parliamentary electorate. It existed from 1911 to 1954, and from 1963 to 1972. It was rural in nature and was represented by four Members of Parliament.
In the 1911 electoral redistribution, the North Island gained a further seat from the South Island due to faster population growth. In addition, there were substantial population movements within each island, and significant changes resulted from this. Only four electorates were unaltered, five electorates were abolished, one former electorate was re-established, and four electorates, including Waimarino, were created for the first time.
The Waimarino electorate was used in its initial form for the 1911 and 1914 elections. The electorate was rural without any urban areas. For the 1914 election, 73 polling stations were used, and at only 15 of them were more than 100 votes cast. These polling stations were in Taihape (878 votes), Ohakune (449), Raetihi (361), Manunui (331), Kakahi (279), Rangataua town hall (273), Owhango (270), Ohakune East (167), Fordell (163), Raurimu (158), Horopito (151), Upukongaroa [sic] (127), Umumuri (126), Piriaka (111), and Mataroa (107). The electorate's area stretched from the South Taranaki Bight to Lake Taupo (but not Taupo itself), and from Taihape in the south-east to just outside Taumarunui in the north-west.