| Election Name: | 2009 Diyala Governorate election |
| Country: | Iraq |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | Iraqi governorate elections, 2005#Diyala Governorate |
| Previous Year: | 2005 |
| Next Election: | 2013 Diyala governorate election |
| Next Year: | 2013 |
| Seats For Election: | All 29 seats for the Diyala Governorate council |
| Party1: | Iraqi Accord Front |
| Last Election1: | 14 |
| Seats Before1: | 14 |
| Seats1: | 9 |
| Seat Change1: | 5 |
| Popular Vote1: | 91,135 |
| Percentage1: | 21.2% |
| Swing1: | 18.9% |
| Colour1: | F47C20 |
| Party2: | Iraqi National Dialogue Front |
| Last Election2: | 0 |
| Seats Before2: | 0 |
| Seats2: | 6 |
| Seat Change2: | 6 |
| Popular Vote2: | 66,309 |
| Percentage2: | 15.4% |
| Swing2: | 15.4% |
| Colour2: | 00009F |
| Party4: | Kurdistani List |
| Last Election4: | 7 |
| Popular Vote4: | 62,219 |
| Percentage4: | 14.5% |
| Swing4: | 0.12% |
| Seats Before4: | 7 |
| Seats4: | 6 |
| Seat Change4: | 1 |
| Colour4: | CCFF33 |
| Leader5: | Ayad Allawi |
| Party5: | Iraqi National List |
| Last Election5: | 0 |
| Popular Vote5: | 42,650 |
| Percentage5: | 9.9% |
| Swing5: | 9.9% |
| Seats Before5: | 0 |
| Seats5: | 3 |
| Seat Change5: | 3 |
| Colour5: | 098DCD |
| Governor of Diyala | |
| Posttitle: | Subsequent Governor |
| Before Election: | Raad Hameed al-Mula al-Tamimi |
| Before Party: | Islamic Supreme Council of Iraq |
| After Election: | Abdulnasir al-Muntasirbillah |
| After Party: | Iraqi Accord Front |
The Diyala governorate election of 2009 was held on 31 January 2009 alongside elections for all other governorates outside Iraqi Kurdistan and Kirkuk.
A Sunni Arab candidate from the National Reform Trend was killed near the disputed town of Mandali.[1]
Immediately after the election, the Iraqi National List and the Iraqi National Dialogue Front claimed victory in Diyala.[2] The final results saw them both winning seats, but no part having an overall majority.
A month after the vote, 2000 supporters of ISCI protested at the results, saying internally displaced refugee supporters had been unable to vote, and a large number of their supporters had turned up to vote to find their names were not on the electoral roll.[3]
In March, the INDF said they would form an alliance with the State of Law Coalition and the Iraqi Islamic Party allied with the Islamic Supreme Council of Iraq.[4]