Nishnabotna River
（重定向自East Nishnabotna River）
![The mouth of the Nishnabotna River at the Missouri River viewed from the southwest](/Images/godic/202501/10/Nishnabotna_River_aerial3122.jpg")
![Flooding (and levee breach) at the confluence on June 16, 2011, during the 2011 Missouri River floods viewed from the northeast. The meander in the river is where it briefly crosses from Missouri to Nebraska on McKissick Island and then back to Missouri before entering the Missouri River.](/Images/godic/202501/10/Corp_of_Eng._6-16-11A_1023122.jpg")
![This excerpt from the Lewis and Clark map of 1814 shows the rivers of southwest Iowa, southeast Nebraska, and northwest Missouri. The](/Images/godic/202501/10/Nodaway-lewis3122.jpg")
The Nishnabotna River is a tributary of the Missouri River in southwestern Iowa, northwestern Missouri and southeastern Nebraska in the United States. It flows for most of its length as two parallel streams in Iowa, the East Nishnabotna River and the West Nishnabotna River. The east and west branches are each about 120 miles (190 km) long; from their confluence the Nishnabotna flows approximately another 16 miles (26 km).