| Largiana | |
| Alt Names: | Largina |
| Known As: | Castra of Românași |
| Built During Reign Of: | Trajan |
| Founded: | 2nd century AD |
| Attested By: | Tabula Peutingeriana |
| Robust Struct Material: | Stone |
| Robust Struct Dim1: | 130 |
| Robust Struct Dim2: | 157 |
| Robust Struct Area: | 2 [1] |
| Weak Struct Material: | Wood and earth |
| Weak Struct Dim1: | 125 |
| Weak Struct Dim2: | 153 |
| Weak Struct Area: | 1.9 |
| Cohorts: | |
| Province: | Dacia |
| Admin Unit 1: | Dacia Superior |
| Admin Unit 2: | Dacia Porolissensis |
| Limes: | Porolissensis |
| Links: | |
| Coordinates: | 47.1069°N 23.1724°W |
| Map: | Romania |
| Location Town: | Românași |
| Location County: | Sălaj |
| Ref:Ro:Lmi: | SJ-I-s-A-04953 |
| Ref:Ro:Ran: | 142435.01 |
| Condition: | Ruined |
| Exhibitions: | County Museum of History and Art, Zalău |
Largiana was a fort in the Roman province of Dacia. It was located near Românași, Sălaj, on a promontory overlooking the valley of river Agrij. Its main function was to guard the intersection between the road from Porolissum to Napoca and the road from Porolissum to castra of Bologa.[3]
The castra was initially constructed of timber on a rectangular plan, 122 x 152 m, and was protected by two ditches. It was later reconstructed and extended using stone, on a 130 x 155 m rectangular surface.[3]
Another auxiliary fort was discovered close by but the two forts probably did not function simultaneously.[3]