- Abernathy, Ralph, 1926-19901
- Abilgaard, Charles1
- Abingdon Court, Inc.1
- Abolafia, Louis1
- Abolition Society of New-York City and Vicinity1
- Abor, Joshua1
- Abplanalp, Alfred1
- Abraham Lincoln High School (New York, N.Y.)1
- Abraham, F. Murray1
- Abrahams, Doris, 1921-20091
- Abrahamsen, Judith1
- Abram French Company2
- Abram, Morris B1
- Abramovich, Teodora1
- Abramovitz, Max, 1908-20043
- Abramowitz, Johnathan1
- Abramowitz, M.L.1
- Abramowitz, Samuel1
- Abrams, Charles, 1902-19701
- Abrams, Diane1
- Abrams, Donald I1
- Abrams, Floyd2
- Abrams, Frank W. (Frank Whittemore), 1889-19761
- Abrams, Philip, 1939-2
- Abrams, Robert, 1938-1
- Abrams, Ruth, 1912-19862
- Abramson, Barbara1
- Abramson, Herb, 1916-19992
- Abravanel, Maurice, 1903-19931
- Abreu, Jala3
- Abruzzese, Ronald1
- Abu-Lughod, Lila1
- Abyssinian Baptist Church (New York, N.Y.)1
- Abzug, Bella S., 1920-1998657
- Abzug, Martin, 1916-19863
- Academy Developers, Inc.1
- Academy of Mount St. Ursula (Bronx, New York, N.Y.)17
- Academy of Mount St. Vincent (Tuxedo Park, N.Y.)4
- Academy of Our Lady of Good Counsel (White Plains, N.Y.)3
- Academy of the Resurrection (Rye, N.Y.)14
- Academy of the Shaw Festival (Niagara-on-the-Lake, Ont.)1
- Accuracy in Media, inc.1
- Ace, Johnny, 1929-19541
- Ackenhausen, Helen1
- Acker, Christiane van1
- Ackerman, Bruce A.1
- Ackerman, Carl W. (Carl William), 1890-19701
- Ackerman, Frederick L.8
- Ackerman, James S.1
- Ackerman, Lauren V., 1905-19931
- Ackerman, Will, 1949-1
- Ackles, David1
- Ackman Brothers1
- Acme Copying Company1
- Acme Rubber Manufacturing Co.1
- Acosta León, Marco A1
- Acuff, Charles E1
- Acuff, Roy1
- Acuña, Melo1
- Adair, James Makittrick, 1728-18024