| Jurisdiction: | Diocese |
| Sambalpur | |
| Latin: | Dioecesis Sambalpurensis |
| Country: | India |
| Rite: | Roman Rite |
| Cathedral: | Cathedral of St Joseph the Worker in Sambalpur |
| Area Km2: | 37,299 |
| Population: | 7,548,100 |
| Population As Of: | 2010 |
| Catholics: | 40,256 |
| Catholics Percent: | 0.5 |
| Bishop: | Niranjan Sual Singh |
| Emeritus Bishops: | Lucas Kerketta Bishop Emeritus (1987-2013) |
| Sui Iuris Church: | Latin Church |
| Map: | Map of Roman Catholic Diocese of Sambalpur.png |
The Roman Catholic Diocese of Sambalpur (la| Sambalpuren(sis)) is a diocese located in the city of Sambalpur in the ecclesiastical province of Cuttack-Bhubaneswar in India.