The Ninetieth Arkansas General Assembly was the legislative body of the state of Arkansas in 2015 and 2016.

In this General Assembly, the Arkansas Senate and Arkansas House of Representatives were both controlled by the Republicans.

In the House, 69 representatives were Republicans, 30 were Democrats, and one was independent.

The 90th General Assembly opened session on January 12, 2015.

A special session was called on May 26, 2015 to move Arkansas's primary date to the SEC Primary.