Legio IV Flavia Felix, was a legion of the Imperial Roman army founded in AD 70 by the emperor Vespasian from the cadre of the disbanded Legio IV Macedonica. The legion was active in Moesia Superior in the first half of the 5th century. The legion symbol was a lion.

Burnum, an archaeological site, was a Roman Legion camp and town. It is located 2.5 km north of Kistanje, in inland Dalmatia, Croatia. The remains include a praetorium, the foundations of several rooms, the amphitheatre and the aqueduct.