- American Communications Foundation1
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- American Documentary, Inc.1
- American Federation of Labor1
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- American Israel Public Affairs Committee1
- American Jewish Committee2
- American Jewish Joint Distribution Committee31
- American Labor Party3
- American Museum of Natural History2
- American Museum of Public Recreation13
- American Mutual Liability Insurance Company1
- American Nationalist (Organization)1
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- American ORT Federation1
- American Personnel and Guidance Association1
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- American Photo Service1
- American Playhouse Theatrical Films2
- American Public Media1
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- Americans for Democratic Action124
- Ames, David1
- Ames, Fisher, 1758-18083
- Ames, Genie1
- Ames, Jessie Daniel, 1883-19722
- Amherst College1
- Amherst of Arracan, William Pitt Amherst, Earl, 1773-185733
- Amherst, Elizabeth, 1739 or 1740-183018
- Amherst, Jeffery Amherst, Baron, 1717-17975
- Amiri Baraka's Blue Ark (Musical group)2
- Amnesty International USA1
- Amos House (Shelters : Providence, R.I.)1
- Amos, Stanley2
- Amram, David28
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- Anatol’ev, An.5
- Ancier, Garth, 1957-1
- Andersen, Eric4
- Anderson, Abraham, 1954-1
- Anderson, Alexander, 1775-18702
- Anderson, Axel, 1929-20121
- Anderson, Carolyn, 1913-19931
- Anderson, Clinton P.34
- Anderson, Clinton Presba, 1895-19751
- Anderson, Florence, 1910-142
- Anderson, Helen1
- Anderson, James1
- Anderson, James W.5
- Anderson, Jim1
- Anderson, Jim (Actor), active 1960s-1970s1
- Anderson, Jon, 1944-1
- Anderson, Marian, 1897-19933
- Anderson, Terry A., 1949-1
- Anderson, Tom, 1910-20024
- Andii︠e︡vsʹka, Emma1