William John Martini (born February 10, 1947) is a senior United States district judge of the United States District Court for the District of New Jersey, having been in active service from November 14, 2002, to February 10, 2015. Martini is one of 24 judges seated on the New Jersey District Court, and his highest profile case to date was the corruption trial for former Newark Mayor Sharpe James.

- Gender
- Male
- Race
- White
Prior employment
- Private practice, Newark, New Jersey1997–2002
- Port Authority of New York and New JerseyCommissioner · 1999–2002
- U.S. representative from New Jersey1995–1997
- Passaic County, New JerseyFreeholder (elected) · 1993–1995
- Private practice, New Jersey1977–1994
- Clifton, New JerseyCity councilman · 1990–1994
District of New JerseyAssistant U.S. attorney · 1974–1977- Hudson County, New JerseyAssistant prosecutor · 1973–1974
- Superior Court of New JerseyLaw clerk , Hon. Joseph P. Hanrahan · 1972–1973
Appointments
2002–2015 · Appointed by George W. Bush (Republican)
Education
- Rutgers School of Law -- NewarkJ.D. · 1972
- Villanova UniversityB.A. · 1968