Romania ( old spelling : Rumania , Roumania ; , ) is a country in the southeast of Central Europe . It is north of the Balkan Peninsula , on the Lower Danube River . Romania ( ; also spelled : Rumania , dated : Roumania ; ) is a country located at the crossroads of Central and Southeastern Europe , north of the Balkan Peninsula , on the Lower Danube , within and outside the Carpathian arch , bordering on the Black Sea .