[2][3][4] Some classifications also include the extinct Dalmatian language (otherwise included in the Italo-Dalmatian group) as part of the Eastern Romance subgroup,[5][6][7] considering Dalmatian a bridge between Italian and Romanian.

[8][9] Eastern Romance comprises Romanian (or Daco-Romanian), Aromanian, Megleno-Romanian and Istro-Romanian, according to the most widely accepted classification of the Romance languages.

[1][10][11][12][13] The four languages sometimes labelled as dialects of Romanian[1] and were developed from a common ancestor[13] mostly referred as Common Romanian.

[15] Judaeo-Spanish (or Ladino) is also spoken in the Balkan Peninsula, but it is rarely listed among the other Romance languages of the region because it is rather an Iberian Romance language that developed as a Jewish dialect of Old Spanish in the far west of Europe, and it began to be spoken widely in the Balkans only after the influx of Ladino-speaking refugees into the Ottoman Empire in the 16th century.

[12] Within the Glottolog database, the languages are classified as follows:[16] Peter R. Petrucci, by contrast, states that Common Romanian had developed into two major dialects by the 10th century, and that Daco-Romanian and Istro-Romanian are descended from the northern dialect, while Megleno-Romanian and Aromanian are descended from the southern dialect.