Cheryl "Sherri" Allen Lydon (born 1962) is a United States district judge of the United States District Court for the District of South Carolina. She previously served as the United States attorney for the same district. She was the first woman to serve as a presidentially-appointed U.S. Attorney for the District of South Carolina.

- Gender
- Female
- Race
- White
Prior employment
U.S. attorney for the District of South Carolina2018–2019- Private practice, Columbia, South Carolina1987–1990, 1995–2003, 2005–2018
- State Grand Jury, Office of the South Carolina Attorney GeneralChief · 2003–2004
- Private practice, Charleston, South Carolina1993–1995
District of South CarolinaAssistant U.S. attorney · 1990–1993
Appointments
2019–present · Appointed by Donald J. Trump (Republican)
Education
J.D. · 1987- Clemson UniversityB.A. · 1983