Roman Catholic Diocese of Tanjung Selor

{{Short description|Roman Catholic diocese in Borneo, Indonesia}}

{{Infobox diocese

|jurisdiction = Diocese

|name = Tanjung Selor

|latin = Dioecesis Tanjungselorensis

|local = Keuskupan Tanjung Selor

|country = Indonesia

|image = Gedung Keuskupan Tanjung Selor.JPG

|caption = Catholic church in Tanjung Selor

|metropolitan = Samarinda

|province = Samarinda

|rite = Latin Rite

|cathedral = Cathedral of the Assumption in Tanjung Selor

|cocathedral =

|area_km2 = 96,630

|population = 482,000

|population_as_of = 2004

|catholics = 40,772

|catholics_percent= 8.5

|pope = {{Incumbent pope}}

|bishop = Mgr Paulinus Yan Olla, M.S.F.

|metro_archbishop = Justinus Harjosusanto, M.S.F.

|coadjutor =

|auxiliary_bishops=

}}

The Roman Catholic Diocese of Tanjung Selor ({{langx|la| Tanjungseloren(sis)}}) is a diocese located in the city of Tanjung Selor in the ecclesiastical province of Samarinda in Indonesia.