| Jurisdiction: | Diocese |
| Bongaigaon | |
| Latin: | Dioecesis Bongaigaonensis |
| Local: | बोंगईगांव के सूबा |
| Country: |  India |
| Metropolitan: | Guwahati |
| Province: | Guwahati |
| Territory: | Bongaigaon, Barpeta, Baksa, Chirang, Dhubri, Kokrajhar and Nalbari |
| Rite: | Latin Rite |
| Cathedral: | Christ, Light of the World Cathedral in Bongaigaon |
| Patron: | Christ Light of the World |
| Parishes: | 29 |
| Area Km2: | 13,630 |
| Population: | 5,497,000 |
| Population As Of: | 2012 |
| Catholics: | 62,908 |
| Catholics Percent: | 1.1 |
| Bishop: | Thomas Pulloppillil |
| Metro Archbishop: | John Moolachira |
| Website: | Website of the Diocese |
The Roman Catholic Diocese of Bongaigaon (la| Bongaigaonen(sis)) is a diocese located in the city of Bongaigaon in the ecclesiastical province of Guwahati in India.