The Constitution of Arkansas is the primary organizing law for the U.S. state of Arkansas delineating the duties, powers, structures, and functions of the state government. Arkansas' original constitution was adopted at a constitutional convention held at Little Rock in advance of the territory's admission to the Union in 1836. In 1861 a constitution was adopted with secession. After the American Civil War its 1864 constitution was drafted. An 1868 constitution was passed to comply with the Reconstruction acts. The current constitution was ratified in 1874 following the Brooks–Baxter War.
The Brooks–Baxter War and passage of the new constitution are considered to mark the end of Reconstruction in Arkansas. This was two years before the disputed 1876 U.S.