Kazimier Śviontak (Belarusian Kazimier Śviontak, Казімер Сьвёнтак; b. October 21, 1914 in Walga) is a Belarusian Cardinal of the Roman Catholic Church, former Archbishop of Minsk-Mohilev, and Apostolic Administrator of Pinsk. After completing seminary in Pinsk, he was ordained a priest in 1939 and sent to the parish of Prużany in the diocese of Pinsk. In 1988 he was named a chaplain of Pope John Paul II. In 1991, he was appointed Archbishop of Minsk-Mahiloŭ and Apostolic Administrator of Pinsk. John Paul II proclaimed Świątek cardinal in 1994.