Woelki was born on 18 August 1956 in Cologne, one of three children of parents who had been expelled from East Prussia at the end of the Second World War. He studied philosophy and theology at the Theological Faculties of the universities of Bonn and Freiburg im Breisgau. On 14 June 1985 Cardinal Joseph Höffner ordained him a priest for the Archdiocese of Cologne.