| Election Name: | 2008 California's 12th congressional district special election |
| Type: | Congressional |
| Seats For Election: | House of Representatives |
| Ongoing: | No |
| Previous Election: | 2006 United States House of Representatives elections in California#District 12 |
| Previous Year: | 2006 |
| Next Election: | 2008 United States House of Representatives elections in California#District 12 |
| Next Year: | 2008 (Nov.) |
| Election Date: | April 8, 2008 |
| Candidate1: | Jackie Speier |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 66,279 |
| Percentage1: | 77.72% |
| Candidate2: | Greg Conlon |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 7,990 |
| Percentage2: | 9.37% |
| Candidate4: | Michelle McMurry |
| Party4: | Democratic Party (United States) |
| Popular Vote4: | 4,546 |
| Percentage4: | 5.33% |
| Candidate5: | Mike Moloney |
| Party5: | Republican Party (United States) |
| Popular Vote5: | 4,517 |
| Percentage5: | 5.30% |
| Representative | |
| Before Election: | Tom Lantos |
| Before Party: | Democratic Party (United States) |
| After Election: | Jackie Speier |
| After Party: | Democratic Party (United States) |
| Map Size: | 300px |
| Country: | California |
California's 12th congressional district special election, 2008 occurred on April 8, 2008. California's 12th congressional district was vacated following the death of Democrat Tom Lantos on February 11, 2008.[1] The special election was called by Governor Arnold Schwarzenegger to fill the vacancy for the remainder of Lantos's term ending on January 3, 2009.[2] The special election took the form of an open primary. Another election would have taken place on June 3 had no candidate received a majority.[3]
Democrat Jackie Speier won a majority of the votes in the open primary and therefore won the election.
The following individuals appeared in the certified list of candidates and the certified list of write-in candidates published by the California Secretary of State, and were thus eligible to receive votes in the special primary election.[4] [5]