Unity State
| Unity State Western Upper Nile | |
|---|---|
| Location in South Sudan (2011–2015 boundaries) | |
| Coordinates: 09°00′N 29°42′E / 9.000°N 29.700°E | |
| Country | South Sudan | 
| Region | Greater Upper Nile | 
| No. of counties: | 9 | 
| Capital | Bentiu | 
| Government | |
| • Type | State | 
| • Governor | HE.Major Gen. Justice Riek Bim Top Long | 
| Area | |
|  • Total | 37,836.39 km2 (14,608.71 sq mi) | 
| Population  (2014 estimate) | |
|  • Total | 824,700 | 
| • Density | 22/km2 (56/sq mi) | 
| Time zone | UTC+2 (CAT) | 
| ISO 3166 code | SS-UY | 
| HDI (2021) | 0.344 low · 7th of 10 | 
Unity State, also known as Western Upper Nile, is a state in South Sudan. Unity State is in the Greater Upper Nile region. Unity is inhabited predominantly by two ethnic groups: the Nuer majority, and the Dinka minority.
In 2015, a presidential decree established a new system of 28 states, replacing the previously established 10. Unity State was replaced by the states of Ruweng, Northern Liech and Southern Liech. Unity State was re-established by a peace agreement signed on 22 February 2020 with smaller boundaries as the northern part of the former state became the Ruweng Administrative Area.