2015–16 Haitian parliamentary election

Parliamentary elections were held in Haiti on 9 August 2015, with a second round initially planned for 25 October. Two-thirds of the Senate and all members of the Chamber of Deputies were up for election. International observers reported that early rounds of voting have experienced significant fraud, including people voting more than once due to failure of indelible ink, vote buying due to lack of secrecy, poor training of election workers, poor tracking of political parties, and other problems. This has resulted in the nullification of some results and rescheduling of re-runs. The second round of the parliamentary elections that had been scheduled for October 2015 was postponed to October 2016, along with the first round for a third of the Senate and the first round of a new presidential election.

The United States withdrew funding for the October 2016 round, though it financially supported previous rounds and observers from the Organization of American States. The second round was scheduled for 9 October 2016 but was postponed to 20 November due to Hurricane Matthew. It was held together with local elections and the first round of the presidential election.