Philippe Bas (; born 20 July 1958) is a French politician, serving as a Member of the Constitutional Council since 2025. He is a former member of the French Senate representing the department of Manche from 2011 to 2025.
He was appointed general secretary of the ÃÂlysée Palace from 2002 to 2005. Since 2014, he is the president of the Commission des Lois in the French Senate. Between July 2018 and February 2019, he was the president of the Senate commission which investigated the Benalla affair, chiefly on the organization of the French presidency about security subjects.