| Trabzon Subregion | |
| Native Name: | Trabzon Alt Bölgesi |
| Native Name Lang: | tr |
| Settlement Type: | Subregion |
| Subdivision Type: | Country |
| Subdivision Name: | Turkey |
| Subdivision Type1: | Region |
| Subdivision Name1: | East Black Sea |
| Area Total Km2: | 37,551 |
| Population Total: | 2,553,647 |
| Population As Of: | 2013 |
| Population Density Km2: | auto |
| Population Rank: | 14th |
| Population Urban: | 2,110,677 |
| Population Rural: | 442,970 |
The Trabzon Subregion (Turkish: Trabzon Alt Bölgesi, TR90) is a statistical subregion in the eastern Black Sea region of Turkey.