The Diocese of Lincoln is a Latin Church diocese in Nebraska, United States, and comprises the majority of the eastern and central portions of the state south of the Platte River. It is a suffragan see to the archdiocese of Omaha. The episcopal see is in Lincoln, Nebraska. Bishop James D. Conley is the current ordinary of the Diocese. The Cathedral of the Risen Christ is the cathedral parish of the diocese.

The Archdiocese of Omaha is a Latin Church ecclesiastical territory or diocese of the Catholic Church in northeastern Nebraska in the United States. Its current archbishop, George Joseph Lucas, was installed in Omaha on July 22, 2009.