| Election Name: | 2010 Budapest Assembly election |
| Type: | parliamentary |
| Ongoing: | no |
| Party Colour: | yes |
| Previous Election: | 2006 Budapest Assembly election |
| Previous Year: | 2006 |
| Next Election: | 2014 Budapest Assembly election |
| Next Year: | 2014 |
| Seats For Election: | All 33 seats in the General Assembly of Budapest |
| Majority Seats: | 17 |
| Election Date: | 3 Oct 2010 |
| 1Blank: | Popular vote |
| 2Blank: | Percentage |
| Leader1: | István Tarlós |
| Party1: | Fidesz–KDNP |
| Last Election1: | 30 seats |
| Seats1: | 17 |
| Seat Change1: | 13 |
| 1Data1: | 302,566 |
| 2Data1: | 50.18% |
| Leader2: | Csaba Horváth |
| Party2: | Hungarian Socialist Party |
| Last Election2: | 24 seats |
| Seats2: | 10 |
| Seat Change2: | 14 |
| 1Data2: | 178,507 |
| 2Data2: | 29.61% |
| Leader4: | Benedek Jávor |
| Party4: | Politics Can Be Different |
| Last Election4: | New party |
| Seats4: | 3 |
| Seat Change4: | 3 |
| 1Data4: | 67,082 |
| 2Data4: | 11.13% |
| Leader5: | Gábor Staudt |
| Party5: | Jobbik |
| Last Election5: | New party |
| Seats5: | 3 |
| Seat Change5: | 3 |
| 1Data5: | 54,765 |
| 2Data5: | 9.08% |
The 2010 Budapest Assembly election was held on 3 October 2010, concurring with other local elections in Hungary. This was the last election for the Assembly with party-list proportional rules until 2024, when this system was restored. The size of the Assembly was reduced from 66 members to 33 at this election.
See main article: 2010 Budapest mayoral election. Fidesz–KDNP candidate István Tarlós won the mayoral election with 53.37% of the vote.
List seats were distributed using the D'Hondt method.