Sofie Karasek (born June 25, 1993) is an American advocate for women's rights and the fight against sexual assault. In 2013, she helped launch a national movement to hold universities accountable for sweeping sexual harm under the rug under Title IX, and was a key driver behind California's "Yes Means Yes" law.[1][2] She co-founded the advocacy organization called End Rape on Campus (EROC) in 2013.