The 2004 United States Senate election in Arkansas took place on November 2, 2004 alongside other elections to the United States Senate in other states as well as elections to the United States House of Representatives and various state and local elections. Incumbent Democratic U.S. Senator Blanche Lincoln won re-election to a second term in office, while President George W. Bush carried the state with almost the same margin of victory. As of 2021, this is the last time the Democrats have won the Class 3 Senate seat from Arkansas.