Cathy Seibel (born November 3, 1960) is a senior United States district judge of the United States District Court for the Southern District of New York.

Career output and lasting influence
Later decisions citing those opinions, per year · peak 5/year
New York Southern District Court · 2008–
Both charts share the same year axis. Opinion counts include only opinions in our corpus attributed to this judge so far — a year at zero can mean an attribution gap, not judicial silence. Influence typically outlasts the career: citations keep climbing after the last opinion.
- Gender
- Female
- Race
- White
Prior employment
Assistant U.S. attorney · 1987–1991, 1993–2008- ↳assistant U.S. attorney-in-charge · 1997–1999
- ↳senior trial counsel · 1999–2005
- ↳deputy U.S. attorney · 2005–2008
Western District of WashingtonSpecial assistant U.S. attorney · 1991–1993
Law clerk , Hon. Joseph M. McLaughlin · 1985–1987
Appointments
2008–2025 · Appointed by George W. Bush (Republican)
Education
J.D. · 1985- Princeton UniversityA.B. · 1982