Frank Dennis Saylor IV (born 1955) is a senior United States district judge of the United States District Court for the District of Massachusetts and was formerly a Judge on the United States Foreign Intelligence Surveillance Court.

F. Dennis Saylor IV
Chief Judge — U.S. District Court for the District of Massachusetts
Born 1955 in Royal Oak, MI
FJC ID: 3055
- Gender
- Male
- Race
- White
Prior employment
- Private practice, Boston, Massachusetts1981–1987, 1993–2004
Criminal Division, U.S. Department of JusticeSpecial counsel and chief of staff to the assistant attorney general · 1990–1993
District of MassachusettsAssistant U.S. attorney · 1987–1990
Appointments
2004–2025 · Appointed by George W. Bush (Republican)
2004–present
Education
J.D. · 1981- Northwestern UniversityB.S. · 1977