Arrubium
| Arrubium | |
|---|---|
| Alternative name(s) | Arrubio |
| Known also as | Castra of Măcin |
| Attested by | Tabula Peutingeriana |
| Place in the Roman world | |
| Province | Moesia |
| Administrative unit | Moesia Inferior |
| Directly connected to | |
| Stationed military units | |
| — Legions — | |
| V Macedonica | |
| — Alae — | |
| |
| Location | |
| Coordinates | 45°14′20″N 28°07′40″E / 45.2388°N 28.1277°E |
| Altitude | c. 17 m |
| Town | Măcin |
| County | Tulcea |
| Country | Romania |
| Reference | |
| RO-RAN | 159749.03 |
| Site notes | |
| Condition | Ruined |
Arrubium was a fort in the Roman province of Moesia (today's Măcin, Romania), (later Scythia Minor) and was part of the defensive frontier system of the Moesian Limes along the Danube.