The Great Hungarian Plain (also known as Alföld or Great Alföld, ) is a plain occupying the southern and eastern part of Hungary, some parts of the Eastern Slovak Lowland (Východoslovenská nížina), southwestern Ukraine, the Transcarpathian Lowland (Zakarpats'ka nyzovyna), western Romania (various names), northern Serbia (various names), and eastern Croatia (various names). It is the largest part of the Pannonian Plain.