Robert Emmet Barron is an American prelate of the Catholic Church who has served as bishop of the Diocese of Winona–Rochester since 2022. He is the founder of the Catholic ministerial organization Word on Fire, and was the host of Catholicism, a documentary TV series about Catholicism that aired on PBS. He served as rector at Mundelein Seminary from 2012 to 2015 and as auxiliary bishop for the Archdiocese of Los Angeles from 2015 to 2022.

The Diocese of Winona–Rochester is a Latin Church ecclesiastical territory, or diocese, of the Catholic Church in Southern Minnesota in the United States. It is a suffragan diocese in the ecclesiastical province of the metropolitan Archdiocese of Saint Paul and Minneapolis.