The 2018 United States House of Representatives elections in Arkansas were held on Tuesday, November 6, 2018, to elect the four U.S. representatives from the U.S. state of Arkansas; one from each of the state's four congressional districts. Primaries were held on May 22, 2018. The elections and primaries coincided with the elections and primaries of other federal and state offices. Polls were open from 7:30 AM to 7:30 PM CST.