Ōhāriu, previously spelled Ohariu and then Ōhariu, is a New Zealand parliamentary electorate returning one Member of Parliament to the House of Representatives. It first existed from 1978 to 1993, and was recreated for the 2008 election. In 2008, it was the successor to Ohariu-Belmont, first contested at the first mixed-member proportional (MMP) election in 1996. Through its existence Ohariu-Belmont was represented by Peter Dunne, leader of the United Future party. Dunne contested and won the recreated electorate in 2008. He announced on 21 August 2017 that he would not stand in the 2017 general election.