Daniel B. "Dan" Winslow (born May 13, 1958) is an American lawyer, Republican Party politician, and former presiding justice of the Wrentham District Court. He was the State Representative for the Ninth Norfolk district from January 2011 to September 2013. Winslow was chief legal counsel to Governor Mitt Romney between 2002 and 2005 and he also served as a presiding justice and appellate division justice in the Massachusetts Trial Court.