- Herbert Aptheker
- Apuleius
- Louis Aragon
- Jennifer Archer
- Jeffrey Archer
- Jules Archer
- William Archibald
- Anastasiya Archipova
- Philip Ardagh
- Charles Ardai
- John Arden
- Paul Arden
- Edward Ardizzone
- Reinaldo Arenas
- Hannah Arendt
- Pietro Aretino
- José María Arguedas
- Chris Argyris
- Dan Ariely
- Ludovico Ariosto
- Philippe Ariès
- Aristophanes
- Aristotle
- Reginald Arkell
- Michael Arlen
- Roberto Arlt
- Ayi Kwei Armah
- Giorgio Armani
- Jennifer L. Armentrout
- Laura Adams Armer
- Simon Armitage
- Lindsay Armstrong
- Karen Armstrong
- Charlotte Armstrong
- Kelley Armstrong
- Arna Bontemps
- Eleanor Arnason
- Elizabeth von Arnim
- Judith Arnold
- Tedd Arnold
- Arnold Bennett
- Jake Arnott
- Harriette Arnow
- Elaine N. Aron
- Lou Aronica
- Elliot Aronson
- Giovanni Arpino
- Fernando Arrabal
- Juan Jose Arreola
- Arrian
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