Free Dacians

The so-called Free Dacians (Romanian: Dacii liberi) is the name given by some modern historians to those Dacians who putatively remained outside, or emigrated from, the Roman Empire after the emperor Trajan's Dacian Wars (AD 101-6). Dio Cassius named them Dakoi prosoroi (Latin: Daci limitanei) meaning "neighbouring Dacians".

A population of Dacians existed on the fringes of the Balkan Roman provinces, especially in the eastern Carpathian Mountains, at least until about AD 340. They were responsible for a series of incursions into Roman Dacia in the period AD 120-272, and into the Roman Empire south of the Danube after the province of Dacia was abandoned by the Romans around AD 275.