Tags: Noble.
John Székely de Szentgyörgy (? – 18 October 1448) was a Hungarian baron who served as ban of Croatia Dalmatia and Slavonia between June 1446 and January 1448. He was a brother-in-law of regent John Hunyadi. His son Thomas Székely was prior of Vrana.His name was first mentioned by historical sources in 1429. He was a familiar of John Hunyadi and served as juror for Solt in 1429. He functioned as judge of the Cumans from 1444 to 1446.