| Bremenium | |
|---|---|
| Northumberland, England, UK | |
 Western gateway to Bremenium | |
  Bremenium Location in Northumberland | |
| Coordinates | 55°16′52″N 2°15′50″W / 55.281°N 2.264°W |
| Grid reference | NY832985 |
Bremenium (High Rochester) is an ancient Roman fort (castrum) located at Rochester, Northumberland, England. The fort is part of the defensive system built along the extension of Dere Street, a Roman road running from York to Corbridge and onwards to Melrose. Significantly the fort is a long way north of Hadrian's Wall. It was one of the last forts north of Hadrian's wall to remain occupied until the 270s.
The fort's name, Bremenium, is mentioned in the Ravenna Cosmography, the Antonine Itinerary and Ptolemy's Geographia.
A separate Roman road ran eastwards from Bremenium to the Roman fort at Learchild, where it joined up with the Devil's Causeway Roman road to Berwick upon Tweed.