The North Dakota Legislative Assembly is the state legislature of the U.S. state of North Dakota. The Legislative Assembly consists of two chambers, the lower North Dakota House of Representatives, with 94 representatives, and the upper North Dakota Senate, with 47 senators. The state is divided into 47 constituent districts, with two representatives and one senator elected from each district. Due to the Legislative Assembly being a biennial legislature, with the House and Senate sitting for only 80 days in odd-numbered years, a Legislative Council oversees legislative affairs in the interim periods, doing longer-term studies of issues, and drafting legislation for consideration of both houses during the next session.

In the United States, the state legislature is the legislative branch in each of the 50 U.S. states.