A referendum on reducing the number of MPs was held in the Cook Islands on 17 November 2010, alongside the general elections. It failed at the ballot.
The binding referendum required a two-thirds majority to pass. However, it was unsuccessful, receiving only 4,983 votes and 59.2% support (of all votes, 63.8% of valid votes). Abstention was rather high, with 623 votes or 7.4% blank or invalid.
According to a poll published by the Cook Islands News on 11 September 2010, 76% of respondents supported the referendum proposal. A number of politicians publicly stated their support for the referendum proposal, including Democratic Party Leader Robert Wigmore and Cook Islands Party deputy leader Teina Bishop.