The Bulgarian Catholic Apostolic Vicariate of Tracia (informally Tracia of the Bulgarians) was the second missionary, pre-diocesan jurisdiction of the Bulgarian Greek Catholic Church sui iuris (Eastern Catholic, Byzantine Rite in Bulgarian language).
As Apostolic Vicariate it was exempt, i.e. directly dependent on the Holy See, and entitled to a titular bishop.
It was established on 7 April 1883 as Bulgarian Catholic Apostolic Vicariate of Tracia alias Hadrianopolis (after its see Adrianople, now Edirne, in Turkish Thrace) on Ottoman Turkish and Bulgarian territory in Thrace split off from the Bulgarian Catholic Apostolic Vicariate of Constantinople.[1]
In 1926 it was suppressed, its territory like that of its sister Bulgarian Catholic Apostolic Vicariate of Macedonia and their mother Constantinople being reassigned to establish the Bulgarian Catholic Apostolic Exarchate of Sofia.