| Jurisdiction: | Diocese |
| Gospić–Senj | |
| Latin: | Dioecesis Gospiciensis-Seniensis |
| Local: | Gospićko-senjska biskupija |
| Country: |  Croatia |
| Rite: | Latin Rite |
| Cathedral: | Katedrala Navještenja Blažene Djevice Marije, Gospić (Cathedral of the Nativity of the Blessed Virgin Mary) |
| Cocathedral: | Katedrala Uznesenja Blažene Djevice Marije, Senj (Cathedral of the Assumption of the Blessed Virgin Mary) |
| Area Km2: | 8,200 |
| Population: | 78,747 |
| Population As Of: | 2013 |
| Catholics: | 66,172 |
| Catholics Percent: | 84 |
| Bishop: | Marko Medo, Bishop-elect |
| Metro Archbishop: | Mate Uzinić |
| Map: | Location Map of Roman Catholic Diocese of Gospić-Senj.svg |
| Website: | Website of the Diocese |
| Flag: | Croatia Bosnia and Herzegovina |
The Diocese of Gospić–Senj (la|Gospiciensis-Seniensis; hr|Gospićko-senjska biskupija) is a Latin Church diocese located in the cities of Gospić and Senj in the ecclesiastical province of Rijeka in Croatia.