Peterson, Rosanna M., 1951-

Rosanna Malouf Peterson (born April 12, 1951) is a Senior United States District Judge of the United States District Court for the Eastern District of Washington and a former professor at Gonzaga University School of Law. On October 13, 2009, President Obama nominated Peterson to serve as a judge on the United States District Court for the Eastern District of Washington to a seat vacated when Frederick Van Sickle assumed senior status. She received her commission on January 26, 2010. She served as Chief Judge from January 27, 2011 to January 27, 2016. Peterson assumed senior status on October 1, 2021.