| Official Name: | Koch |
| Pushpin Map: | South Sudan |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in South Sudan |
| Subdivision Type: | Country |
| Subdivision Name: | South Sudan |
| Subdivision Type1: | Region |
| Subdivision Name1: | Greater Upper Nile |
| Subdivision Type2: | State |
| Subdivision Name2: | Unity State |
| Subdivision Type3: | County |
| Subdivision Name3: | Koch County |
| Unit Pref: | Imperial |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Timezone: | CAT |
| Utc Offset: | +2 |
| Coordinates: | 8.596°N 29.992°W |
Koch is a community in the Koch County of Unity State, in the Greater Upper Nile region of South Sudan. It is the headquarters of Koch County.
The community lies in Jagei Nuer territory.It is within the Block 5A oil concession. Between 1998 and 2003 the community was attacked many times by government-supported troops or militias.[1] In 2002 the community was repeatedly attacked by a government Antonov bomber and helicopter gunships.[2]
On 31 January 2000, Riek Machar formally resigned from the government and called on his commanders and Nuer chiefs to meet him at Koch. United Nations planes were used under false pretenses to transport leaders to the conference, where the Sudan People's Defence Forces / Democratic Front was announced.