| Name |
Location |
Status |
Key Finds |
CIMRM/Other Ref |
Latitude |
Longitude |
Date Discovered |
Notes |
| Calleva Atrebatum | UK (England) | Disputed | 1906 relief reidentified as possibly Mithraic (2023) | N/A | 51.357 | -1.074 | 2023 | Britannia 2023 |
| Housesteads (Vercovicium) | Northumberland, UK | Un-Confirmed | Possible Lost Fragments | N/A | 55.0347 | 0 | 0 | Cite Breeze & Dobson (2000), p. 235 |
| Mithraeum at Inveresk | Scotland | Confirmed | Three Mithraic Altars | N/a | 55.939 | -3.054 | 2023 | Legio XX Roman Fort |
| Mithraeum of Brocolitia | Carrawburgh, UK | Confirmed | Three altars | CIMRM 844-847 | 55.0347 | -2.2236 | 1949 | Iconic UK site |
| Mithraeum of Calleva | Silchester, UK | Probable | Text references | - | 51.3567 | -1.0806 | 0 | Literary evidence |
| Mithraeum of Carrawburgh | Northumberland, UK | Confirmed | Tauroctony, altars | CIMRM 844-847 | 55.0347 | -2.2236 | 1949 | Near Hadrian's Wall. |
| Mithraeum of Eboracum | York, UK | Confirmed | Inscribed column | - | 53.9583 | -1.0806 | 1950 | Legionary HQ |
| Mithraeum of Isca Augusta | Caerleon, UK | Probable | Legionary shrine | - | 51.6092 | -2.9583 | 1980 | Only Welsh candidate |
| Mithraeum of Isurium | Aldborough, UK | Confirmed | Mosaic symbols | - | 54.09 | -1.38 | 1960 | Brigantian capital |
| Mithraeum of London | London, UK | Confirmed | Tauroctony, inscriptions | - | 51.5128 | -0.0925 | 1954 | Relocated to street level. |
| Mithraeum of Luguvalium | Carlisle, UK | Confirmed | Relief fragments | - | 54.8908 | -2.9419 | 1990 | Frontier garrison |
| Mithraeum of Rudchester | Northumberland, UK | Confirmed | Tauroctony fragments | CIMRM 848-850 | 55 | -2.0833 | 1844 | Hadrian's Wall fort. |
| Mithraeum of Trimontium | Newstead, UK | Probable | Military objects | - | 55.6 | -2.6833 | 2010 | Scottish Borders |
| Mithraeum of Vindolanda | Hexham, UK | Confirmed | Wooden votives | - | 54.9911 | -2.3608 | 1970 | Hadrian's Wall fort |
| Pons Aelius | Newcastle, UK | Disputed | Cautes Statue, no exact site | N/A | 4.969 | -1.609 | 19 | Archaeologia Aeliana (2012) |