The 13th Cook Islands Parliament is the previous term of the Parliament of the Cook Islands. Its composition was determined by the 2010 elections on 17 November 2010. Due to an electoral petition declaring the election of Tekii Lazaro invalid, the 13th Parliament initially consisted of only 23 members. A by-election was held for the vacant Pukapuka-Nassau seat. The Parliament sat for the first time on 18 February 2011. It was dissolved on 17 April 2014.