Huntsville is a city in and the county seat of Madison County, Arkansas, United States. The population was 2,879 at the 2020 census,^[5] up from 2,346 in 2010. During the American Civil War in 1862, it was the site of what became known as the Huntsville Massacre. Huntsville is part of the Northwest Arkansas region.

The city is named after Huntsville, Alabama, the hometown of some early settlers.^[6] Huntsville incorporated as a town after the Civil War in 1877.^[7] The community was incorporated as a city on July 16, 1925.^[8]

Huntsville is located north of the center of Madison County in the northwest part of the Arkansas Ozarks. Via U.S. Route 412 it is 28 miles (45 km) east of Springdale and 47 miles (76 km) west of Harrison.

According to the United States Census Bureau, the city has a total area of 5.4 square miles (14 km²), of which 0.02 square miles (0.05 km²), or 0.33%, are water.^[3] Town Branch flows northward through the east side of the city, ending at Holman Creek in the northern part of the city. Holman Creek flows north into War Eagle Creek, which continues northwest to the White River east of Springdale.

The Huntsville School District provides public elementary and secondary education leading to graduation at Huntsville High School.

The Huntsville Public Library, part of the Madison Carroll and Madison Library System, is located at 827 N. College Street, which provides patrons of the library system access to print books, publications, multimedia content, internet access, public computer access, as well as access to an Interlibrary loan system.^[12]

• Joe Berry, Major League Baseball pitcher for the Chicago Cubs, Philadelphia Athletics, and Cleveland Indians
• Orval E. Faubus, 36th governor of Arkansas during the desegregation days; lived in Huntsville as a youth, having been born in the nearby Combs community
• Ronnie Hawkins, legendary rockabilly musician; his band The Hawks later became The Band; born in Huntsville
• Gary Miller, Republican congressman from California; born in Huntsville^[14]
• Isaac Murphy, politician who lived and worked in Huntsville; elected as governor in 1863 after Union occupation of Little Rock
• Danny L. Patrick, Republican member of the Arkansas House of Representatives from Madison and Carroll counties from 1967 to 1970; taught school in Huntsville from 1964 to 1971^[15]