Rufus Seth Williams (born January 2, 1967) is a former district attorney of the city of Philadelphia. He began his term January 4, 2010. He formerly served as an assistant district attorney. Williams was the first African-American district attorney in Philadelphia and in the Commonwealth of Pennsylvania. On March 21, 2017, Williams was indicted on 23 counts of bribery, extortion, and fraud. His trial began June 19, 2017. He resigned and pleaded guilty to one charge on June 29, 2017.