| Type: | parliamentary |
| Country: | Antigua and Barbuda |
| Election Date: | 12 March 2009 |
| Previous Year: | 2004 |
| Next Year: | 2014 |
| Seats For Election: | All 17 seats in the House of Representatives |
| Majority Seats: | 9 |
| Turnout: | 80.27% (10.92pp) |
| Outgoing Members: | 12th legislature of Antigua and Barbuda#Members |
| Elected Members: | 13th legislature of Antigua and Barbuda#Members |
| Leader1: | Baldwin Spencer |
| Image1: | BaldwinSpencer (cropped).jpg |
| Party1: | United Progressive Party (Antigua and Barbuda) |
| Seats1: | 9 |
| Seat Change1: | 3 |
| Popular Vote1: | 21,239 |
| Percentage1: | 50.95% |
| Swing1: | 4.55pp |
| Leader2: | Lester Bird |
| Party2: | ALP |
| Seats2: | 7 |
| Seat Change2: | 3 |
| Popular Vote2: | 19,657 |
| Percentage2: | 47.16% |
| Swing2: | 5.22pp |
| Leader3: | Trevor Walker |
| Image3: | Trevor Walker in 2010.jpg |
| Party3: | BPM |
| Seats3: | 1 |
| Popular Vote3: | 474 |
| Percentage3: | 1.14% |
| Swing3: | 0.12pp |
| Prime Minister | |
| Posttitle: | Subsequent Prime Minister |
| Before Election: | Baldwin Spencer |
| Before Party: | UPP |
| After Election: | Baldwin Spencer |
| After Party: | UPP |
General elections were held in Antigua and Barbuda on 12 March 2009. The result was a victory for the United Progressive Party, which won nine of the seventeen elected seats in the House of Representatives.
Three days before the elections the Chamber of Commerce announced observations of voter registration irregularities and called for an investigation into the matter. For example, in the Saint Peter constituency, voter registration increased by 41%.[1]
A three-member observation team from Belize, Canada, and Guyana observed the election.[2]
On 31 March 2010, a judge nullified the election of UPP's leader Spencer and two other UPP MPs, calling the UPP's majority into question.[3] However, on 24 October the Court of Appeal of the Eastern Caribbean Supreme Court overturned the High Court's decision and decided that the three MPs were duly elected.[4]