Croatia borders Hungary.
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 . Serbia ( [ ˈsɜrbiə ] , Србија / Srbija , [ sř̩bija ] ) , officially the Republic of Serbia ( Република Србија / Republika Srbija ) , is a landlocked sovereign state situated at the crossroads of Central and Southeast Europe , covering the southern part of the Pannonian Plain and the central Balkans .