| Name | Location | Status | Key Finds | CIMRM/Other Ref | Latitude | Longitude | Date Discovered | Notes |
|---|---|---|---|---|---|---|---|---|
| Mithraeum of Delos | Delos, Greece | Confirmed | Aegean trade center | - | 37.4 | 25.2667 | 1970 | Cosmopolitan sanctuary |
| Mithraeum of Dion | Dion, Greece | Confirmed | Bilingual inscription | - | 40.1667 | 22.4833 | 1980 | Northern Greek rare example |
| Mithraeum of Piraeus | Piraeus, Greece | Confirmed | Naval inscriptions | - | 37.9422 | 23.6467 | 1950 | Athens' port |
| Mithraeum of Rhodes | Rhodes, Greece | Probable | Hellenistic blend | - | 36.4356 | 28.2217 | 1980 | Possible island shrine |