Nigerien constitutional referendum, 1989

A constitutional referendum was held in Niger on 24 September 1989. The new constitution would make the country a one-party state with the National Movement for a Developing Society as the sole legal party. The government would have a presidential system, as well as the continued involvement of the army, which had ruled the country since a military coup in 1974.

It was approved by 99.3% of voters with a 94.9% turnout. The first elections under the new constitution were held on 12 December.