- Peoples' Steam Ship Company of So. Ca.1
- Pepoon, Benjemin F.1
- Peronneau, Henry William (Chairman Standing Committee Charleston State Rights Associatio1
- Perry, Benjamin Franklin, fl. 18901
- Peruvian Guano Corporation1
- Phi Mu Alpha Sinfonia Fraternity1
- Phoenix Fire Engine Company1
- Pickens, Francis F.1
- Pickens, Lucy Petaway Holcombe1
- Pickett, Marilyn1
- Plante, Brian1
- Planters' and Mechanics' Bank of South Carolina1
- Player, Thomas T.1
- Porcher, W.M., Master of Ceremonies and Marshal1
- Powe, James Harrington, 1835-1898.1
- Power, William C., 1837-18731
- Presbyterian Church in the U.S.A. General Assembly1
- Presbyterian College1
- Preston, William C.1
- Protestant Episcopal Church, Charleston County, St. Philip's, Charleston1