Sex Workers Outreach Project-USA (SWOP-USA) is a national social justice network dedicated to the fundamental human rights of sex workers and their communities, focusing on ending violence and stigma through education and advocacy. The organization was founded by Robyn Few on August 13, 2003, and their first major action was to organize the first annual International Day to End Violence Against Sex Workers (December 17) with the Green River Memorial for the victims of Gary Ridgway, the "Green River Killer".