Mary, Queen of Hungary was the reigning queen of Hungary, 1382–95.
Mary of Hungary or Maria of Hungary may also refer to:
- Margaret of Hungary or Byzantine Empress Maria (1175–1223)
- Mary of Hungary, Queen of Naples (1257–1323), Queen Consort of Naples
- Mary of Hungary (governor of the Netherlands) (1505–1558), wife of Louis II of Hungary and queen consort of Bohemia and Hungary; later, the governor of the Habsburg Netherlands