- "Arts in Virginia" (PB-04), 1960/19931
- "Scenes from Behind the Wall: Images of East Germany, 1989/90" exhibit collection, 1989/20121
- A. E. Dick Howard papers, 1928/20174
- A. Jane Duncombe Architectural Papers, 1952/20022
- A. Patrick L. Prest, Jr. papers, 1941/20141
- ALIVE (ALexandrians InVolved Ecumenically) Records (MS300), 1969/19957
- Abraham Anson papers, 1939/20056
- Academic Affairs: Academic Program Reviews, 1976/2018, bulk 1992/20181
- Admiral Thomas J. Lopez Papers, 1973/20146
- Agnes Wolf papers, 1966/20061
- Alan Bowne papers, 1964/1991, bulk 1980/19891
- Alan Clarke Railroad Research Papers, 1861/20121
- Albert J. Wasserman Papers, 1925/20032
- Alexandria History Collection (MS240), 1767/20083
- Alexandria Library Board Records (MS416), 1937/20202