Antun Vrančić or Antonio Veranzio was a Croatian prelate, writer, diplomat and Archbishop of Esztergom in the 16th century. Antun Vrančić was from the Dalmatian town of Šibenik, then part of the Republic of Venice. Vrančić is also known under his Latinized name Antonius Verantius, while Hungarian documents since the 19th century refer to him as Verancsics Antal.

The Archdiocese of Esztergom–Budapest is a Latin Church archdiocese and primatial seat of the Catholic Church in Hungary and the metropolitan see of one of Hungary's four Latin Church ecclesiastical provinces.