- Aaronovitch, Ben
- Abercrombie, Joe
- Ablow, Keith
- Abraham, Daniel
- Adam, Frank
- Adams, Douglas
- Adcock, Thomas
- Adler, Kristin
- Adler-Olsen, Jussi
- Adrian, Lara
- Adolfsson, Maria
- Ahdieh, Renée
- Ahern, Cecelia
- Ahnhem, Stefan
- Ahrens, T. V.
- Aichner, Bernhard
- Aiken, G. A.
- Akunin, Boris
- Alexi, Uwe K.
- Almstädt, Eva
- Anderson, Kevin J.
- Anderson, Lin
- Anderson, Poppy J.
- André, Martina
- Andrews, Ilona
- Angelini, Josephine
- Anhalt, Gert
- Ani, Friedrich
- Anonymus
- Aramburu, Fernando
- Archan, Isabella
- Archer, Jeffrey
| - Arian, Kar
- Arjouni, Jakob
- Arlidge, Matthew J.
- Armentrout, Jennifer L.
- Armstrong, Kelley
- Arndt, Martin von
- Asaro, Catherine
- Asher, Neal
- Asprin, Robert
- Atkinson, Kate
- Atwood, Margaret
- Auel, Jean M.
- Aurel, Catherine
- Auster, Paul
- Autissier, Isabelle
- Aveyard, Victoria
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