2012 Hawaii House of Representatives election
The 2012 Hawaii State House of Representatives Elections were held on November 6, 2012. All 51 seats were up for election.
A total of 6 seats changed sides as a result of the election. 2 Republican incumbents failed to secure reelection against Democratic opponents. 3 Republicans took advantage of the redistricting and gained seats in districts vacated by incumbents. Democrats also took control of the District 19 seat vacated by retiring Republican Barbara Marumoto-Coons.
Retiring Incumbents
A total of 5 incumbents were retiring.| Incumbent | Party | District | Notes |
| Jerry Chang | Democratic | District 2 | Did not seek reelection. |
| Robert Herkes | Democratic | District 5 | Retired to run for State Senate District 2. |
| Barbara Marumoto-Coons | Republican | District 19 | Did not seek reelection. |
| Joey Manahan | Democratic | District 29 | Did not seek reelection. |
| Kymberly Pine | Republican | District 43 | Retired to run for Honolulu City Council District 1 |
Incumbents Defeated in the Primary
Due to redistricting, two incumbents were forced to compete with each other for the same district. Democratic Representative Jessica Wooley defeated Democratic representative Pono Chong for the Democratic nomination in District 48.Republican Representative Gil Riviere lost his nomination to Richard Fale in the primary. He was the only incumbent to lose a primary.