Antun Vrančić or Antonio Veranzio (29 May 1504 – 15 June 1573) was a Croatian prelate, writer, diplomat and Archbishop of Esztergom in the 16th century. Antun Vrančić was from Dalmatian town of Šibenik (modern Croatia), 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.