March of Pannonia

The March of Pannonia or Eastern March (Latin: marcha orientalis) was a frontier march of the Carolingian Empire, named after the former Roman province of Pannonia and carved out of the preceding and larger Avar March.

It was referred to in some documents as terminum regni Baioariorum in Oriente or "the end of the kingdom of the Bavarians in the east", and from this is sometimes called the Bavarian Eastern March of the wider Bavarian eastern marches, a term used for any such territory, though today most commonly used to refer to the later Margraviate of Austria, established in 976 as a sort of late successor state.

It was erected in the mid-ninth century in the lands of the former Avar Khaganate against the threat of Great Moravia and lasted only as long as the strength of that state. The East Frankish rulers appointed margraves (prefects) to govern the march.