| Jurisdiction: | Archeparchy |
| Hajdúdorog | |
| Latin: | Archidioecesis Haidudoroghensis |
| Local: | Hajdúdorogi Főegyházmegye |
| Country: |  Hungary |
| Metropolitan: | Metropolitan see sui iuris of Hajdúdorog |
| Rite: | Byzantine Rite |
| Area Km2: | 73,341 |
| Population: | 8,207,275 |
| Population As Of: | 2011 |
| Catholics: | 197,501 |
| Catholics Percent: | 2.4 |
| Emeritus Bishops: | Szilárd Keresztes |
| Map: | Map of Greek Catholic Archdiocese of Hajdudorog.png |
| Website: | Website |
The Archeparchy of Hajdúdorog (Latin: Archidioecesis Haidudoroghensis) is a Hungarian Greek Catholic Church archeparchy of the Catholic Church that is in full communion with the Holy See. The archeparchy is the metropolitan see of its ecclesiastical province which covers the whole of Hungary. The archeparch (equivalent to an archbishop in the Latin Church) is also, ex officio, the metropolitan bishop of the metropolis. The cathedral church of the archeparchy is the Cathedral of the Presentation of Mary in the city of Hajdúdorog.
On 8 June 1912, it was established as Eparchy (Eastern Catholic diocese) of Hajdúdorog, on territory formerly belonging to the Metropolitan Archeparchy of Făgăraș and Alba Iulia, the Greek Catholic Archeparchy of Prešov, the Latin Metropolitan Archdiocese of Esztergom (Hungary), the Eparchies of Gherla, Armenopoli and Szamos-Ujvár, Mukachevo and Oradea Mare.
According to Austro-Hungarian authorities, a bomb sent by Ilie Cătărău exploded on 23 February 1914 at the palace of the new Eparchy of Hajdúdorog; 3 people were killed and over 20 wounded.
On 9 April 1934, the eparchy lost territory to Metropolitanate sui juris of Făgăraş and Alba Iulia and Eparchies of Maramureş and Oradea Mare (in Romania) and on 5 March 2011 lost more territory to the pre-existing, also Hungarian (Greek) Catholic Apostolic Exarchate of Miskolc.
On 20 March 2015, it was elevated to Archeparchy and Metropolitanate sui juris, with two simultaneously created suffragan Eparchies comprised in its new province: