| Election Name: | 2004 California Republican presidential primary |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2000 California Republican primary |
| Previous Year: | 2000 |
| Next Election: | 2008 California Republican primary |
| Next Year: | 2008 |
| Home State1: | Texas |
| Popular Vote1: | 2,216,351 |
| Percentage1: | 99.986% |
| Country: | California |
| Map Size: | 275px |
| Delegate Count1: | 170 |
| Elected Members: | GA |
| Outgoing Members: | KS |
| Color1: | d30036 |
| Candidate1: | George W. Bush |
| Votes For Election: | 173 Republican National Convention delegates (170 pledged, 3 unpledged) The number of pledged delegates received is determined by the popular vote |
The 2004 California Republican presidential primary was held on March 2, 2004, the same day as the Democratic primary. As expected, incumbent President George W. Bush won near-unanimously over the disbanded opposition. Bush later won the general election over Senator John Kerry of Massachusetts.
| Candidate | Votes | % | Delegates[2] | |
|---|---|---|---|---|
| George W. Bush (incumbent) | 2,216,047 | 99.986 | 170 | |
| Nancy Warrick (write-in) | 95 | 0.004 | 0 | |
| Bill Wyatt (write-in) | 90 | 0.004 | 0 | |
| Blake Ashby (write-in) | 56 | 0.003 | 0 | |
| Bradley J. Barton (write-in) | 22 | 0.001 | 0 | |
| Richard Allen Holtz (write-in) | 17 | 0.0008 | 0 | |
| Richard P. Bosa (write-in) | 12 | 0.0006 | 0 | |
| Doc Castellano (write-in) | 12 | 0.0006 | 0 | |
| Total | 2,216,351 | 100% | 170 |