Liburnia

thumb|240px|Ethnolinguistic map of Italy in the Iron Age, before the Roman expansion and conquest of Italy

Liburnia () in ancient geography was the land of the Liburnians, a region along the northeastern Adriatic coast in Europe, in modern Croatia, whose borders shifted according to the extent of the Liburnian dominance at a given time between 11th and 1st century BC. Domination of the Liburnian thalassocracy in the Adriatic Sea was confirmed by several Antique writers, but the archeologists have defined a region of their material culture to be more precisely in northern Dalmatia, eastern Istria, and Kvarner.