Mark Robert Filip (born June 1, 1966) is an American lawyer specializing in class action and white collar criminal and regulatory defense. Formerly a partner at Skadden, Arps, he currently practices in the Washington, D.C. office of Kirkland and Ellis. From 2004 until 2008, Filip served as a United States district judge of the United States District Court for the Northern District of Illinois. As the George W. Bush administration ended, Filip served as Deputy Attorney General of the United States, and as the Barack Obama administration began he briefly served as acting attorney general (from January 20, 2009, to February 3, 2009).

- Gender
- Male
- Race
- White
Prior employment
- Private practice, Chicago, Illinois1994–1995, 1999–2004, 2009–present
U.S. Department of JusticeDeputy attorney general · 2008–2009
Lecturer · 2000–2008
Northern District of IllinoisAssistant U.S. attorney · 1995–1999
Adjunct professor · 1998–1999
Law clerk , Hon. Antonin Scalia · 1993–1994
Law clerk , Hon. Stephen F. Williams · 1992–1993
Appointments
2004–2008 · Appointed by George W. Bush (Republican)Term ended: Resignation
Education
J.D. · 1992- University of Oxford, Christ Church CollegeB.A., law · 1990
- University of IllinoisB.A. · 1988