Witold Mroziewski (born March 25, 1966) is a Polish-American prelate of the Roman Catholic Church. He has been serving as an auxiliary bishop of the Diocese of Brooklyn in New York City since 2015.
The Diocese of Łomża sent Mroziewski to New York City in 1992 to minister to Polish citizens in the city. In 1993, the Diocese of Brooklyn assigned him as parochial vicar at Our Lady of Czestochowa-Saint Casimir Parish in Brooklyn. He became pastor of this parish in 2000.[2] Mroziewski went back to KUL to earn a Master of Canon Law degree in 2001.
In 2001, Mroziewski was incardinated, or transferred, from the Diocese of Łomża to the Diocese of Brooklyn.[1] He received a Ruris Canon Lawyer degree from KUL in 2003. He was moved from Our Lady in 2013 to Holy Cross Parish in Brooklyn to serve as pastor there.[2]