- Ace, Johnny, 1929-19541
- Aceiro, Jorge1
- Acevedo, Carmen2
- Ackenhausen, Helen1
- Acker, Christiane van4
- Ackerman, Bruce A.1
- Ackerman, Carl W. (Carl William), 1890-19701
- Ackerman, James S.1
- Ackerman, Lauren V., 1905-19931
- Ackerman, Will, 1949-1
- Ackles, David1
- Acuff, Charles E1
- Acuff, Roy1
- Acuña, Melo1
- Adam, Claus, 1917-19832
- Adam, Margie3
- Adamovich, Georgiĭ1
- Adams, Brock, 1927-20041
- Adams, Claude1
- Adams, Diana, 1926-19931
- Adams, Jack1
- Adams, James Truslow, 1878-19491
- Adams, Janus1
- Adams, Joseph1
- Adams, Maude, 1872-19531
- Adams, Nicholas, 1947-1
- Adams, Oscar1
- Adams, Pepper, 1930-19868
- Adams, Sherman, 1899-19862
- Adasko, Laura1
- Addams, Jane, 1860-19351
- Addiss, Stephen, 1935-1
- Adedeji, Adebayo1
- Adelman, Kenneth L. (Kenneth Lee), 1946-1
- Adelstein, Stephen1
- Adjmi, Morris, 1959-1
- Adkins, Bertha Sheppard, 1906-19831
- Adlai E. Stevenson College1
- Adler Planetarium & Astronomy Museum1
- Adler, Alexandra, 1901-20011
- Adler, Bill, 1951-1
- Adler, Kurt A. (Kurt Alfred), 1905-19971
- Adler, Margot2
- Adler, Renata1
- Adler, Richard, 1921-20121
- Adorno Irizarry, Pedro1
- Adroher, Antònia, 1913-20071
- Advanced Workers with the Anti-Imperialist Singers (Musical group)1
- Adwoa, Kai1
- Afetinan, A1
- African Axemen (Musical group)1
- African Free School (Newark, N.J.)1
- African Liberation Forces of Mauritania4
- African Liberation Support Committee6
- African Liberation Support Committee. Conference (1974 : Washington, D.C.)3
- Afrikian, Vahan1
- Agent Orange (Musical group)2
- Aghcheian, Hairabed1
- Agle, David1
- Agnew, Spiro T., 1918-19962