John of Küküllő (Hungarian: Küküllei/Küküllői János, Latin: Iohannes de Kikullew, Romanian: Ioan de Târnave; c. 1320–1393) was a Hungarian clergyman, royal official and historian.
Born as John Apród of Tótsolymos, John was the son of Miklós Apród, a nobleman who received Tótsolymos (now Šarišské Sokolovce in Slovakia) from Charles I of Hungary.
[1] He worked as a notary for the royal chancery before 1350.
[1] He wrote a biography of Louis I of Hungary after 1360.
[1][2] He was the first Hungarian historian to use royal charters while writing his book.