Barry Dean Loudermilk ( LOW-dər-MILK; born December 22, 1963) is an American politician from the state of Georgia who has been the U.S. representative from Georgia's 11th congressional district since 2015. The district covers a large slice of Atlanta's northern suburbs, including Marietta, Acworth and Smyrna, and a sliver of Atlanta itself. Loudermilk won the Republican nomination for the seat in a runoff on July 22, 2014, over Bob Barr, and won the general election on November 4, 2014. He was reelected to successive terms in 2016, 2018, 2020, and 2022.