| Jurisdiction: | Diocese |
| Bomadi | |
| Latin: | Dioecesis Bomadiensis |
| Country: | Nigeria |
| Territory: | portions of Delta State and Rivers State and enter Bayless State |
| Province: | Benin City |
| Metropolitan: | Augustine Obiora Akubeze |
| Deaneries: | Five Deaneries: Bomadi Deanery, Yenagoa Deanery, Agudama Deanery, Imiringi Deanery and Patani Deanery |
| Coordinates: | 5.1667°N 5.9333°W Bomadi |
| Area Km2: | 13,140 |
| Population: | 2,994,321 |
| Population As Of: | 2016 |
| Catholics: | 37,682 |
| Catholics Percent: | 1.3 |
| Parishes: | 24 |
| Churches: | 2 |
| Denomination: | Catholic Church |
| Sui Iuris Church: | Latin Church |
| Rite: | Roman Rite |
| Established: | 21 September 2017 |
| Cathedral: | Our Lady of the Waters Cathedral, Bomadi |
| Suffragan: | for one --> |
| Archdeacon: | for one--> |
| Map: | Nigeria Delta State map.png |
The Diocese of Bomadi (Latin: Dioecesis Bomadiensis) is a Latin Church ecclesiastical jurisdiction or diocese of the Catholic Church in Nigeria. Its episcopal see is Bomadi, Delta State. The diocese is a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Benin City.
The Apostolic Vicariate of Bomadi straddles the Niger River and Niger Delta and includes portions of Delta State and Rivers State.