| Jurisdiction: | Diocese |
| Yei | |
| Latin: | Dioecesis Yeiensis |
| Denomination: | Catholicism |
| Parishes: | 9 |
| Rite: | Roman |
| Sui Iuris Church: | Latin Church |
| Cathedral: | Christ the King Cathedral |
| Bishop: | Alex Lodiong Sakor Eyobo |
| Archdiocese: | Archdiocese of Juba |
| Emeritus Bishops: | Erkolano Lodu Tombe |
| Priests: | 6 |
| Population: | 472,600 |
| Catholics: | 231,950 |
| Catholics Percent: | 49.1 |
| Area Km2: | 46000 |
The Roman Catholic Diocese of Yei (Latin: Yeien(sis)) is a diocese located in the city of Yei in the ecclesiastical province of Juba in South Sudan.