- Adams, John, 1735-1826115
- Adams, Maude, 1872-19531
- Adams, Mildred, 1894-19801
- Adams, Oscar1
- Adams, Pepper, 1930-19864
- Adams, Samuel, 1722-18031
- Adams, Thomas1
- Adasko, Laura1
- Addams, Jane, 1860-19351
- Addiss, Stephen, 1935-1
- Adebayo, Dotun2
- Adet, Pierre-Auguste, 1763-18321
- Adlai E. Stevenson College1
- Adler Planetarium & Astronomy Museum1
- Adler, Bill, 1951-1
- Adler, Margot2
- Adler, Richard, 1921-20121
- Adorno, Theodor W., 1903-19691
- Advanced Workers with the Anti-Imperialist Singers (Musical group)1
- Advertising Council3
- Adwoa, Kai1
- Affleck, Lady1
- Affleck, M.2
- African Free School (Newark, N.J.)1
- African Liberation Support Committee6
- African Liberation Support Committee. Conference (1974 : Washington, D.C.)3
- African telegraph and Gold Coast mirror (Newspaper)1
- African times and Orient review (Newspaper)11
- Agent Orange (Musical group)2
- Agnew, John2
- Agnew, Spiro T., 1918-19962
- Agran, Larry1
- Aguirre, Carlos1
- Agüeros, Jack, 1934-20149
- Ahmed, Muhammad, 1941-1
- Ahrens, Peg1
- Ahrland, Karin, 1931-20192
- Aiken, Conrad, 1889-19733
- Aitken, Gillon R.1
- Akili, Baba1
- Al-Amin, Jamil, 1943-1
- Albany (N.Y.). Common Council1
- Alberse, Jim1
- Albert, Arthur, 1946-1
- Albert, Eddie2
- Albert, Jan2
- Albert, Stewart Edward, 1939-20064
- Albertson, Chris2
- Albertson, Dean, 1920-19891
- Albin (Musical group)1
- Albright-Knox Art Gallery1
- Alcalde, Hector (Lobbyist)1
- Alden, Ginger2
- Aldridge, Jacob1
- Alert Americans Association1
- Aletti, Vince2
- Alexander, James1
- Alexander, Teddy1
- Alexander, Will Winton, 1884-19565
- Alexander, William, 1726-17832