The 2004 Washington Insurance Commissioner election was held on November 2, 2004, to elect the insurance commissioner of Washington, concurrently with the 2004 U.S. presidential election, as well as elections to the U.S. Senate and various state and local elections, including for U.S. House and governor of Washington. Primary elections took place on September 14.
Incumbent Democratic Insurance Commissioner Mike Kreidler was re-elected to a second term in a landslide.
Incumbent Insurance Commissioner Mike Kreidler, first elected in 2000, ran for re-election to a second term in office.