Archeparchy of Hajdúdorog, Hungarian Greek Catholic archeparchy in Hajdúdorog, Hungary

The Archeparchy of Hajdúdorog is the metropolitan see of the Hungarian Greek Catholic Church, a sui iuris Eastern Catholic Church using the Byzantine rite in Hungarian. Its cathedral is the Cathedral of the Presentation of Mary in Hajdúdorog, while the metropolitan seat is in Debrecen. It heads an ecclesiastical province covering all of Hungary, with suffragan eparchies of Nyíregyháza and Miskolc.

King Francis Joseph I founded the Eparchy of Hajdúdorog on 6 May 1912, and Pope Pius X canonised it on 8 June 1912 with the bull Christifideles Graeci, making it the first Greek Catholic diocese with a Hungarian majority. On 23 February 1914 a bomb attributed to Ilie Cătărău exploded at the new eparchy's palace, killing three people and wounding more than twenty. Pope Francis raised it to a metropolis with its seat in Debrecen on 19 March 2015, detaching it from the jurisdiction of the Archdiocese of Esztergom-Budapest.

The archeparchy's liturgy is served in Hungarian, a language the Holy See accepted for this Byzantine-rite church; the first bishop, István Miklósy, was consecrated in 1913. Its cathedral in Hajdúdorog is dedicated to the Presentation of Mary, while the Máriapócs church holds the rank of minor basilica. The see city is Debrecen, named in the 2015 bull that raised the eparchy to an archeparchy.

The administrative office is located in central Debrecen on a main square, making it easy to find and access. Keep in mind this is an active administrative center, so standard business hours apply for any visits or inquiries.

The see was created on 8 June 1912 by the bull Christifideles Graeci of Pius X, making Hajdúdorog the first Greek Catholic eparchy with a Hungarian-speaking majority. Its cathedral is the Church of the Presentation of Mary in Hajdúdorog, while the archeparchy was raised to metropolitan rank by Francis on 19 March 2015.