- Association of Citizens' Councils of Mississippi1
- Association of Colored Physicians of South Carolina8
- Association of Governing Boards of Universities and Colleges. Center for Public Trusteeship and Governance1
- Association of Public Library Administrators of South Carolina1
- Association of State Floodplain Managers1
- Assolari, Maria Maddalena1
- Asten, Peter10
- Aster, Ron1
- Astin, Walter (composer)1
- Astley, Thomas1
- Astor House1
- Atchison, John1
- Atelier Graphique1
- Athanasakos, Elizabeth1
- Atherton, Gerald W.1
- Athletic Department, University of South Carolina116
- Athletic Department, University of South Carolina
2
- Atkins Landing143
- Atkins, Jean1
- Atkinson, A.1