- Jenkins' Orphanage Band2
- Johnston, Olin D. (Olin Dewitt), 1896-19653
- Jones, Bob, 1883-19681
- Jones, Bob, 1911-19971
- Journalists1
- Kennedy, John F. (John Fitzgerald), 1917-19631
- Ku Klux Klan (1915-)3
- Lafayette, Marie Joseph Paul Yves Roch Gilbert Du Motier, marquis de, 1757-18341
- Law enforcement2
- Lawyers2
- Lifeguards1
- Lighthouses--South Carolina1
- Livestock exhibitions1
- Low-income housing2
- Lyons, F.S.L. (Francis Stewart Leland), 1912-19831
- Magnolia Gardens (Charleston, S.C.)1
- Malnutrition1
- Masoleums1
- Maybank, Burnet R. (Burnet Rhett), 1899-19541
- McDuffie, George, 1790-18511