Hungary is bordered by Romania.
Hungary . It covers an area of 93,030 km2 , situated in the Carpathian Basin , and is bordered by Slovakia to the north , Romania to the east , Serbia to the south , Croatia to the southwest , Slovenia to the west , Austria to the northwest , and Ukraine to the northeast . Romania . The River Danube , Europe 's second-longest river , rises in Germany and flows in a general southeast direction for 2,857 km ( 1775 mi ) , coursing through ten countries before emptying into Romania 's Danube Delta .