Robert Emmet Patrick Barron (born November 19, 1959) is an American Catholic theologian who has served as bishop of the Diocese of Winona–Rochester since 2022. 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. He has published on theology and spirituality, and is the founder of Word on Fire.