Meglenoromanians are one of smallest ethic communities among Romanian-speaking population of the Balkan Peninsula. The ethic name Meglenoromanian represent an academic term, because their self-identification is with the term Vlah (Vlas), general name for the Romanians used mainly by Slavic people. Due the historical and political circumstances, the Meglenoromanian settlements were divided by the border of Greece and today Republic of Macedonia, processes of ethnic and linguistic assimilation being intensive on both sides, but different, as Greek and SlavoMacedonian. Often their identity is connected mainly at the settlement level, which is described in paper bellow. Historical, geographical and demographical aspects are described in details, as from the question of ethic genesis until today repartition and processes. As many other communities in Balkans, Meglenoromanians has tumultuous ethic history during last two centuries, including population changes and deportations connected with the linguistic or confessional particularities. It is interesting to mention that part of Meglenoromanians were Islamized and as consequence were deported from Greece to Turkey in 1921-1922 years. Remaining part of Orthodox Meglenoromanians are officially and partially de-facto assimilated by Greeks and Macedonians, but their dialect it is still alive and spoken by around 5000 persons, mainly as second language at home. Some processes of ethnic emancipation took part, especially in the frame of Republic of Macedonia, where majority of the Meglenoromanians are concentrated today in the city of Gevgelija.