Ivan Sleziuk
Ukrainian Greek Catholic bishopo and blessed (1896-1973)
Feast: 2 December (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Who they were
At Ivano-Frankivsk in Ukraine, Blessed Ivan Sleziuk, bishop and martyr, to whom the Lord gave the palm of eternal life for tirelessly carrying out his ministry in secret among the faithful of the Byzantine Rite under an atheist regime and for courageously keeping his faith in Christ firm before the persecutors.
The miracles
As a martyr he was raised to the altars without a miracle.
Why that counted as sanctity
The Roman Martyrology remembers him on 2 December as a bishop who ministered in secret to Byzantine-Rite faithful under an atheist regime.
The cause
The cause continues. No postulation address is published here yet. Favours received through this person’s intercession, and offers of help, are best sent to the religious order or congregation they belonged to, or to the diocese where the cause was opened; either will pass them to the postulation.
- Roman Martyrology, 2 December (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q176600 — dates, feast day and identifiers (CC0)
- English Wikipedia — Ivan Slezyuk (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.