Roman Catholic Archdiocese of Chicago

The Archdiocese of Chicago (Latin: Archidiœcesis Chicagiensis) is a Latin Church ecclesiastical jurisdiction, an archdiocese of the Roman Catholic Church located in Northeastern Illinois, in the United States. The Vatican erected it as a diocese in 1843 and elevated it to an archdiocese in 1880. Chicago is the see city for the archdiocese. On September 20, 2014, Cardinal Blase Joseph Cupich was appointed Archbishop of Chicago. The cathedral parish for the archdiocese, Holy Name Cathedral, is in the Near North Side area of Chicago.

The archdiocese serves over 2 million Catholics in Cook and Lake counties, an area of 1,411 square miles (3,650 km²). The archdiocese is divided into six vicariates and 31 deaneries. An episcopal vicar administers each vicariate. The archdiocese is the metropolitan see of the province of Chicago. Its suffragan dioceses are the other Catholic dioceses in Illinois: Belleville, Joliet, Peoria, Rockford, and Springfield.

Cardinal Joseph Bernardin, archbishop of Chicago from 1982 to 1996, was arguably one of the most prominent figures in the American Catholic church in the post–Vatican II era, rallying progressives with his "seamless garment ethic" and his ecumenical initiatives.