Roman Catholic Diocese of Purnea

{{Short description|Roman Catholic diocese in Bihar, India}}

{{more citations needed|date=April 2022}}

{{Use dmy dates|date=August 2019}}

{{Infobox diocese

|jurisdiction = Diocese

|name = Purnea

|latin = Dioecesis Purneaensis

|country = India

|metropolitan = Patna

|province = Patna

|rite = Latin Rite

|cathedral = St. Peter’s Cathedral in Purnia

|cocathedral =

|area_km2 = 15,733

|population = 8,349,215

|population_as_of = 2004

|catholics = 24,391

|catholics_percent= 0.3

|pope = {{Incumbent pope}}

|bishop =

|metro_archbishop = Sebastian Kallupura

|coadjutor =

|auxiliary_bishops=

|emeritus_bishops = Angelus Kujur

}}

The Roman Catholic Diocese of Purnea ({{langx|la| Purneaen(sis)}}) is a diocese located in the city of Purnea in the ecclesiastical province of Patna in India.