Mary Wallis Geiger Lewis (born December 18, 1958) is a United States district judge of the United States District Court for the District of South Carolina.

- Gender
- Female
- Race
- White
Prior employment
- Private practice, Columbia, South Carolina1985–2012
Law clerk , Hon. Owens Taylor Cobb · 1984–1985
Appointments
2012–present · Appointed by Barack Obama (Democratic)
Education
J.D. · 1984- Clemson UniversityB.A. · 1980