The 2008 California Republican presidential primary was held on February 5, 2008, with a total of 173 national delegates at stake.

The delegates represented California at the Republican National Convention.

[1][2] Voting in the primary was restricted to registered Republican voters.

[3] Early polls showed Rudy Giuliani in the lead.

Polls taken closer to the primary either showed Mitt Romney or John McCain as the favored candidate.