Tareha Te Moananui (died 19 December 1880) was a principal chief of the Ngāti Kahungunu iwi, and a Māori member of Parliament in New Zealand from 1868 to 1870. Born between 1800 and 1810, Tareha was the son of Oneone and Hāmene. He added Te Moananui to his name following the death of Ngāti Kahungunu leader Kurupo Te Moananui in 1861. Tareha was one of four Māori elected in 1868 for the new Māori electorates in the New Zealand Parliament, and he was the first of the four to speak in Parliament. He represented the electorate of Eastern Maori from 1868 to 1870, when he retired.