- Abbey, Edward – American radical environmentalist
- Abbott, Bud – American comedian with Lou Costello
- Abrams, John
- Abzug, Bella – American politician
- Accius, Lucius
- Acheson, Dean
- Ackerman, Diane
- Acton, Lord
- Adams, Abigail – American wife of John Adams 1764
- Adams, Andy
- Adams, Ansel – American nature photographer
- Adams, Brian
- Adams, Douglas – English humorist & science fiction novelist
- Adams, Franklin P. – American journalist
- Adams, George Matthew
- Adams, Henry – American author, autobiographer, & historian
- Adams, Joey
- Adams, John – American diplomat & politician
- Adams, John Quincy – American diplomat & politician
- Adams, Philip
- Adams, Samuel Hopkins
- Adams, Scott – American cartoonist
- Adams, Thomas
- Addams, Jane – American social worker, sociologist, & suffragist
- Addison, Joseph – English essayist, poet, & politician
- Ade, George – American dramatist & humorist
- Adelman, Sybil
- Adler, Alfred – Austrian psychiatrist & psychologist
- Adler, Mortimer
- Adler, Richard P.
- Aeschylus – Greek tragic dramatist
- Aesop – Greek slave & fable author
- Afranius
- Agar, Herbert
- Agassi, Andre – American tennis player
- Agathon
- Agee, James – American author
- Agesilaus the Second
- Ahbez, Eden
- Aiken, George
- Aiken, Howard – American computer scientist
- Aimee, Anouk
- Alba, Jessica
- Albertano of Brescia
- Alberti, Leon Battista – Italian artist
- Alberti, Scipione
- Albom, Mitch
- Albright, Herm
- Albright, Madeleine – American (Czechoslovakian-born) diplomat
- Alcott, Amos Bronson – American educator & Transcendentalist
- Alcott, Louisa May – American juvenile novelist
- Alcuin – Anglo-Saxon mathematician & scholar
- Alda, Alan – American actor
- Alden, Paulette Bates
- Alder, Kurt Herbert
- Aldrich, Thomas Bailey
- Aldrin, Buzz – American astronaut
- Alexander, Archibald
- Alexander, Rhys
- Alexander, Shana
- Alger, Horatio
- Algren, Nelson
- Ali, Muhammad – American boxer
- Alighieri, Dante – Italian national epic poet
- Allen, Fred – American radio comedian
- Allen, Gracie – American actress
- Allen, Grant
- Allen, Henry
- Allen, James Lane
- Allen, John
- Allen, Robert G.
- Allen, Roger
- Allen, Woody – American movie actor, comedian, & director
- Allingham, Margery
- Allison, Dorothy
- Almond, Steve
- Alther, Lisa
- Altito, Noelie
- Altman, Robert – American movie director, producer, & screenwriter
- Altsheler, Joseph A.
- Alvarez, Julia T.
- Alzado, Lyle – American football player
- Ambler, Eric
- Ambrose, Stephen – American historian and author
- Amerongen, Jerry Van
- Amiel, Henri-Frédéric
- Amis, Kingsley – English author & humorist
- Ammons, A. R.
- Amory, Cleveland
| - Amos, Wally 'Famous' – American cookie businessman
- Amundsen, Roald – Norwegian Arctic & Antarctic explorer
- Anaxagoras – Greek astronomer & philosopher
- Ancis, Joe
- Andersen, Hans Christian – Danish poet & fairy tale author
- Anderson, Greg
- Anderson, Laurie
- Anderson, Lorraine
- Anderson, Maxwell – American historical dramatist
- Anderson, Pamela – Canadian actress
- Anderson, Poul – American science fiction author
- Anderson, Sherwood
- Anderson, Walter
- Andretti, Mario – American (Italian-born) automobile racer
- Andreyev, Leonid N.
- Andrus, Ethel Percy
- Angel, Joanna
- Angelou, Maya – American author & poet
- Aniston, Jennifer
- Anonymous
- Anouilh, Jean – French dramatist
- Ansberry, Clare
- Anthony, Robert
- Anthony, Susan B. – American abolitionist & suffragist
- Antiphanes
- Antisthenes – Greek philosopher at Athens
- Antoninus, Marcus Aurelius – Roman Emperor, A.D. 161-180
- Antrim, Minna Thomas
- Anwary, Anwarshah
- Appianus
- Appleton, Sir Edward – English atmospheric physicist
- Appleton, Victor
- Aprocrypha
- Apuleius – Roman philosopher, rhetorician, & satirist
- Aquaviva
- Arbus, Diane – American photographer
- Arc, Joan of – French heroine & saint
- Arcesilaus
- Archimedes – Greek inventor, mathematician, & physicist
- Ardis, Mark
- Arendt, Hannah – American (German-born) historian & social philosopher
- Ariosto, Ludovico – Italian epic poet
- Aristophanes – Greek Athenian comic dramatist
- Aristotle – Greek critic, philosopher, physicist, & zoologist
- Armstrong, Heather
- Armstrong, Jon
- Armstrong, Louis – American jazz musician, scat singer, & trumpeter
- Armstrong, Neil – American astronaut
- Arnim, Elizabeth von
- Arnold, George
- Arnold, Matthew – English critic & poet
- Artaud, Antonin – French actor, critic, & drama theorist
- Arthur, T.S.
- Artzybashev, Mikhail Petrovich
- Asaf, George
- Asch, Sholem – American (Polish-born) author in Yiddish
- Ash, Mary Kay
- Ashby, Sir Eric
- Ashcroft, John – American politician
- Ashdown, Pete
- Ashe, Arthur
- Ashton-Warner, Sylvia
- Asimov, Isaac – American science fiction novelist & scholar
- Askue, Russell P.
- Asoka – king of India 272BC?-232BC?
- Asquith, Herbert Henry – British politician
- Asquith, Margot
- Assael, David
- Astell, Mary
- Aster, Clyde B.
- Astor, Nancy – British politician
- Ataturk, Mustafa Kemal – Turkish politician & reformer
- Atherton, Gertrude Franklin Horn
- Atkinson, Brooks
- Atkinson, John
- Atlee, Clement
- Attanasio, A. A.
- Atwood, Margaret – Canadian critic, feminist, novelist, & poet
- Auden, W. H. – American (English-born) critic & poet
- Auerbach, Berthold – German novelist
- Augustine, Norman – American aircraft businessman
- Augustine, Saint
- Augustus, Caesar – Roman politician
- Ausonius
- Austen, Jane – English novelist
- Averre, Berton
- Avery, Tex – American cartoonist & animator of Warner Brothers cartoons
- Ayer, A. J.
- Azai, Ben
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