Same-sex marriage in California

Same-sex marriage has been legal in California since June 28, 2013. The State of California first issued marriage licenses to same-sex couples from June 16, 2008 to November 5, 2008, as a result of the Supreme Court of California finding in the case of In re Marriage Cases that barring same-sex couples from marriage violated the Constitution of California. The issuance of such licenses was halted from November 5, 2008 through June 27, 2013 (though existing same-sex marriages continued to be valid) due to the passage of Proposition 8—a state constitutional amendment barring same-sex marriages. The granting of same-sex marriages resumed following the U.S. Supreme Court's decision in Hollingsworth v. Perry, which restored the effect of a federal district court ruling that overturned Proposition 8 as unconstitutional.

California was the second U.S. state (after Massachusetts) to legalize same-sex marriage. Those marriages granted under the laws of other state governments, foreign and domestic, were legally recognized and retained state-level rights since 2008. On November 12, 2008, Connecticut took over California's former position as the second state issuing legal same-sex marriages. On November 5, 2024, California voters passed Proposition 3, a constitutional amendment that enshrined the right to same-sex and interracial marriage in the state constitution. The measure passed with 63% of the vote.