Synonyms: Bihar, Comitatus Hajdonicalis et Bihariensis, Condado han Hajdu-Bihar, Condado han Hajdú-Bihar, Gajdu-Bigar, Haidu Bihar, Haidu Biharas, Haidū Biharas, Hajdu-Bihar, Hajdu-Bihar Coonty, Hajdu-Bihar County, Hajdu-Bihar ili, Hajdu-Bihar megye, Hajdu-Biharas mege, Hajdu-Bihari komitaat, Hajdu-biharska zupanija, Hajdu-biharska županija, Hajducko-biharska zupa, Hajducko-bihárska župa, Hajdú-Bihar, Hajdú-Bihar Coonty, Hajdú-Bihar County, Hajdú-Bihar ili, Hajdú-Bihar megye, Hajdú-Bihari komitaat, Hajdū-Biharas meģe, Judetul Hajdu-Bihar, Județul Hajdú-Bihar, Khajdu-Bikhar, Komitat Hajdu-Bihar, Komitat Hajdú-Bihar, Provincia di Hajdu-Bihar, Provincia di Hajdú-Bihar, Wilayah Hajdu-Bihar, Wilayah Hajdú-Bihar, haidu-biharis medie, hajdw-byhar, hao yi du-bi hao er zhou, heoidubiheoleu ju, hyydw-byhr, Гайду-Бігар, Хайду-Бихар, Хајду-Бихар