Jerzy Ciesielski (12 February 1929 – 9 October 1970) was a Polish Roman Catholic from Kraków and a member from the Focolare Movement.
Ciesielski was married and was also a close personal friend of Karol Józef Wojtyla – the future Pope John Paul II.
Ciesielski worked as a professor and was a civic engineer himself and died in an accidental shipwreck in the Nile River.Ciesielski's beatification cause started under John Paul II in 1992 and the confirmation of his heroic virtue allowed for Pope Francis to name him as Venerable on 17 December 2013.