| Mayiandit County (Haak County) | |
| Settlement Type: | County |
| Subdivision Type: | Country |
| Subdivision Name: | South Sudan |
| Subdivision Type1: | State |
| Subdivision Name1: | Unity State |
| Unit Pref: | Metric |
| Area Total Km2: | 3,067 |
| Population Total: | 80,529 |
| Population As Of: | 2017 estimate[1] |
| Population Density Km2: | auto |
| Timezone: | CAT |
| Utc Offset: | +2 |
Mayiandit County (Haak County) is a county in Unity State, South Sudan. Before the reorganisation of states in 2015, it was a part of Unity State. Inhabitant by Haak Nuer people of Unity state Bentiu.