The Mississippi Legislature is the state legislature of the U.S. state of Mississippi. The bicameral Legislature is composed of the lower Mississippi House of Representatives, with 122 members, and the upper Mississippi State Senate, with 52 members. Both representatives and senators serve four-year terms without term limits. The Legislature convenes at the Mississippi State Capitol in Jackson.

Mississippi is a state in the Southeastern region of the United States. It borders Tennessee to the north, Alabama to the east, the Gulf of Mexico to the south, Louisiana to the southwest, and Arkansas to the northwest. Mississippi's western boundary is largely defined by the Mississippi River, or its historical course. Mississippi is the 32nd largest by area and 35th-most populous of the 50 U.S. states and has the lowest per-capita income. Jackson is both the state's capital and largest city. Greater Jackson is the state's most populous metropolitan area, with a population of 591,978 in 2020.