| Jurisdiction: | Archdiocese |
| Samarinda | |
| Latin: | Archidioecesis Samarindaënsis |
| Local: | Keuskupan Agung Samarinda |
| Province: | Samarinda |
| Country: | Indonesia |
| Rite: | Latin Rite |
| Cathedral: | Cathedral of St Mary in Samarinda |
| Area Km2: | 114,810 |
| Population: | 2,567,000 |
| Population As Of: | 2010 |
| Catholics: | 97,171 |
| Catholics Percent: | 3.8 |
| Metro Archbishop: | Mgr Yustinus Harjosusanto, MSF |
The Roman Catholic Archdiocese of Samarinda (Latin: Samarindaën(sis)) is an archdiocese located in the city of Samarinda in Indonesia.
In addition to the cathedral, St. Mary's in Samarinda, there are two other parishes serving the faithful: St. Luke's in Temindung (Paroki Santo Lukas Temindung) and the Church of the Sacred Heart of Jesus in Seberang (Paroki Hati Kudus Yesus).