| Election Name: | 2000 United States House of Representatives elections in California |
| Country: | California |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 1998 United States House of Representatives elections in California |
| Previous Year: | 1998 |
| Next Election: | 2002 United States House of Representatives elections in California |
| Next Year: | 2002 |
| Seats For Election: | All 52 California seats to the United States House of Representatives |
| Party1: | Democratic Party (United States) |
| Last Election1: | 28 |
| Seats Before1: | 27 |
| Seats1: | 32 |
| Seat Change1: | 5 |
| Popular Vote1: | 5,405,002 |
| Percentage1: | 51.79% |
| Party2: | Republican Party (United States) |
| Last Election2: | 24 |
| Seats Before2: | 25 |
| Seats2: | 20 |
| Seat Change2: | 5 |
| Popular Vote2: | 4,446,295 |
| Percentage2: | 42.60% |
| Map Size: | 250px |
The United States House of Representatives elections in California, 2000 was an election for California's delegation to the United States House of Representatives, which occurred as part of the general election of the House of Representatives on November 7, 2000. Democrats gained five seats, one of which was held by Matthew G. Martinez who switched to the Republican Party after being defeated in the Democratic primary, expanding their majority in California's delegation.
| United States House of Representatives elections in California, 2000 | |||||||
|---|---|---|---|---|---|---|---|
| Party | Votes | % | Before | After | +/– | ||
| Democratic | 5,405,002 | 51.79% | 27 | 32 | +5 | ||
| Republican | 4,446,295 | 42.60% | 25 | 20 | -5 | ||
| Libertarian | 278,472 | 2.67% | 0 | 0 | 0 | ||
| Natural Law | 228,273 | 2.19% | 0 | 0 | 0 | ||
| Green | 37,952 | 0.36% | 0 | 0 | 0 | ||
| Reform | 33,311 | 0.32% | 0 | 0 | 0 | ||
| American Independent | 7,474 | 0.07% | 0 | 0 | 0 | ||
| Write-ins | 518 | 0.00% | 0 | 0 | 0 | ||
| Invalid or blank votes | 649,440 | 5.86% | — | — | — | ||
| Totals | 11,086,737 | 100.00% | 52 | 52 | — | ||
Final results from the Secretary of State of California: https://web.archive.org/web/20070612161316/http://www.sos.ca.gov/elections/sov/2000_general/us_rep.pdf
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