The Hungarian minority of Romania is the largest ethnic minority in Romania. As per the 2021 Romanian census, 1,002,151 people declared themselves Hungarian, while 1,038,806 people stated that Hungarian was their mother tongue.

Hungarian is a Uralic language spoken in Hungary and parts of several neighbouring countries. It is the official language of Hungary and one of the 24 official languages of the European Union. Outside Hungary, it is also spoken by Hungarian communities in southern Slovakia, western Ukraine (Transcarpathia), central and western Romania (Transylvania), northern Serbia (Vojvodina), northern Croatia, northeastern Slovenia (Prekmurje), and eastern Austria (Burgenland).