Szilárd Ignác Bogdánffy (21 February 1911 – 3 October 1953) was a Roman Catholic auxiliary bishop of Satu Mare and Oradea of the Latins.

On 30 October 2010 he was proclaimed blessed in a ceremony held in the Cathedral Basilica of St. Mary, Oradea, Romania, being recognized as a martyr of the Communist period.

Szilárd Bogdánffy was born to ethnic Hungarian parents on 21 February 1911 in the village of Feketetó, then part of Torontál County, Austria-Hungary; today called Crna Bara, near the town of Kikinda, district Northern Banat, autonomous province of Vojvodina, Serbia.

[B] He continued his studies at the University of Budapest, where he earned a PhD in philosophy and dogmatics, with a thesis on "Apocalyptics in the Synoptic Gospels".

He had previously been approached, on several occasions, by representatives of the regime, with the request that he lead an "independent Romanian Latin-rite Church, with no ties to the Vatican" which he adamantly refused.

[2] Until his death he spent four years as a captive in various prisons throughout Romania, including the evil-reputed Cape Midia camp at the Danube–Black Sea Canal.