Sarah Deer (born November 9, 1972) is a Native American lawyer, professor of law at William Mitchell College, and 2014 MacArthur fellow. She advocates for survivors of sexual assault and domestic violence in Native American communities. She has been credited for her "instrumental role" in the 2013 reauthorization of the Violence Against Women Act, as well as for testimony which is credited with the 2010 passage of the Tribal Law and Order Act. Deer coauthored, with Bonnie Claremont, Amnesty International's 2007 report Maze of Injustice, documenting sexual assault against Native American women.