| Geiger | |
| Settlement Type: | Border Town |
| Native Name: | Arabic: القیقر |
| Pushpin Map: | South Sudan |
| Pushpin Mapsize: | 300 |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Greater Upper Nile |
| Subdivision Type2: | State |
| Subdivision Name2: | Upper Nile |
| Subdivision Type3: | County |
| Subdivision Name3: | Renk County |
| Subdivision Type4: | Payam |
| Subdivision Name4: | Geiger Payam |
| Leader Title: | Chief administrative officer |
| Leader Name: | Dok Lual[1] |
| Population Total: | 2,000 - 3,000 refugees[2] |
| Timezone: | WAT[3] |
| Utc Offset: | +2 |
| Coordinates: | 11.9933°N 32.7614°W |
| Area Code: | 7G3JXQV6+8H |
Geiger (Arabic: القیقر), is a border town in the Renk County of Upper Nile State, in the Greater Upper Nile region of South Sudan. It is notable for the refugee crisis from South Sudan into Sudan due to the South Sudanese Civil War.[2] It is situated along the White Nile.