Willem Jacobus "Wim" Eijk is a Dutch prelate of the Catholic Church, a cardinal since 2012. He has been the Metropolitan Archbishop of Utrecht since 2007. He was Bishop of Groningen-Leeuwarden from 1999 to 2007. Before his clerical career he worked as a doctor; as a priest he made medical ethics the focus of his academic studies.

The Diocese of Groningen-Leeuwarden is a suffragan Latindiocese of the Catholic Church in the northern part of the ecclesiastical province of the Metropolitan Roman Catholic Archdiocese of Utrecht. It encompasses the provinces of Groningen, Friesland and Drenthe, as well as the Noordoostpolder, a part of the province of Flevoland.