- Leigh, Mitch, 1928-20142
- Lieber, Oscar M. (Oscar Montgomery), 1830-18622
- Lovell, James, 1737-18142
- Lyons, John Henry 2
- Mahor, Brian2
- Martin, Francis E.2
- Martin, William Dickinson, 1789-18332
- Matthew, Thomas2
- Mayer, Adam, 1787-18342
- McCain, Danny2
- McClerken, Isaac2
- McDonald, Walter2
- McFadden, Johnnie2
- McMillan, John L. (John Lanneau), 1898-19772
- McNair, Robert E. (Robert Evander), 1923-20072
- McNair, Robert E. (Robert Evander), 1923-2007.2
- McNeel, T.W.2
- Mead, S. B.2
- Meadors, Marshall L.2
- Medical College of the State of South Carolina2