| Duk County | |
| Settlement Type: | County |
| Subdivision Type: | Country |
| Subdivision Name: | South Sudan |
| Subdivision Type1: | State |
| Subdivision Name1: | Jonglei |
| Subdivision Type2: | Duk Padiet |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Timezone: | CAT |
| Utc Offset: | +2 |
Duk is a county in Jonglei, South Sudan.[1] In May 2016, it was divided into three counties which were Duk Padiet, Duk Payuel, and Panyang.[2] In 2017, the governor of Jonglei State added Duk Pagaak County, totaling four counties in former Duk County. However, in 2020, President Salva Kiir Mayardit reinstated the original number of states and counties, thus reunifying original Duk County.[3] In Duk County is the village of Duk Payuel, the birthplace of John Dau who is one of the "Lost Boys of Sudan."