United States congressional delegations from Arkansas

Since Arkansas became a U.S. state in 1836, it has sent congressional delegations to the United States Senate and United States House of Representatives, beginning with the 25th United States Congress in 1837, with the exception of the Civil War period between the 37th United States Congress in 1861 and the 40th United States Congress in 1868, when Arkansas' congressional delegations were sent to the Confederate States Congress instead. Before becoming a state, the Arkansas Territory elected a non-voting delegate at-large to Congress, beginning with the 16th United States Congress in 1819. Each state elects two senators to serve for six years in general elections, with their re-election staggered. Prior to the ratification of the Seventeenth Amendment in 1913, senators were elected by the Arkansas General Assembly. Each state elects a varying number of, but at least one, member of the House, depending on population, to two-year terms. Arkansas has sent four members to the House in each congressional delegation since the 1960 United States census.

The current dean, or longest-serving member, of the Arkansas delegation is senator John Boozman, who has represented Arkansas in Congress since 2001. As a senator for 34 years, from 1942 to 1977, John L. McClellan was the longest-serving senator to represent Arkansas in Congress.