本項目は、全年代・言語におけるベストセラー作家の一覧（ベストセラーさっかのいちらん）である。ページが際限なく肥大化するのを防ぐため、1億冊以上売れた者のみを載せる。また、漫画家は含まない。
一覧 作家 推定売上部数（最低） 推定売上部数（最高） 原語 ジャンル・タイトル 出版数 国籍ウィリアム・シェイクスピア20億Times Online on William Shakespeare: "Christie sold more than two billion books, translated into 103 languages. Only the Bible and Shakespeare’s works are said to have sold more." (September 14 2005)40億Times Online on William Shakespeare and Agathe Christie: "Christie wrote 80 detective novels mostly featuring Poirot or Marple and it has been suggested that only the Bible and Shakespeare’s canon have outsold an estimated 4 billion copies of her books. " (15 September 2008)英語 戯曲 と 詩 イギリスアガサ・クリスティ20億News.com.au on Agatha Christie: "With more than two billion copies of her 80 crime masterpieces sold there is a ready-made audience for television adaptations." (8 February 2008)40億英語推理、『ミス・マープル』、『エルキュール・ポアロ』85イギリスバーバラ・カートランド5億The Telegraph on Barbara Cartland: "Barbara Cartland, who, we are informed (on www.condor-sj.com), 'is the most widely read author in the world with more than 500 million books in print'?" (25 February 2007) 10億CBS News on Barbara Cartland: "Dame Barbara Cartland, 98. Considered the world's most prolific author and Britain's queen of romantic fiction, with total sales of 1 billion books." (December 20 2000)英語恋愛723イギリスハロルド・ロビンズ7億5000万The Independent on Harold Robbins: "During his 50-year career (he died in 1997) he sold an estimated 750 million books and, in the process, transformed himself into a brand." (23 September 2008)7億5000万USA Today on Harold Robbins: "Starting in 1948, he sold 750 million books, including megasellers such as The Carpetbaggers, A Stone for Danny Fisher and The Betsy." (9 October 2007) 英語冒険23アメリカジョルジュ・シムノン5億The Age on Georges Simenon: "With worldwide sales of 500 million, he was the most widely read living writer of his era." (14 September 2003)7億The Wall Street Journal on Georges Simenon: "In his lifetime Simenon published some 570 books, using 17 pen names, which have sold more than 700 million copies in 40 countries and were translated into 57 languages." (1 April 2003)フランス語推理、『ジュール・メグレ』570ベルギーイーニッド・ブライトン3億Encyclopedia Britannica on Enid Blyton: "By the late 20th century her books had sold more than 300 million copies and been translated into at least 90 languages." (24 November 2007)6億The Huddersfield DailyExaminer on Enid Blyton: "She has been translated into 90 languages, is the sixth most popular writer worldwide according to UNESCO and almost equal to Shakespeare, and has sold 600 million copies." (25 August 2008)英語児童文学、『ノディ』800 イギリスダニエル・スティール5億6000万Reuters on Danielle Steel: "Steel has since sold more than 560 million books and on Tuesday will publish her 72nd novel "Honor Thyself."" (21 February 2008)5億7000万MSNBC on Danielle Steel: "Authored by Danielle Steel, whose romance novels have sold more than 570 million copies, [...]" (17 June 2008)英語恋愛72アメリカドクター・スース1億The Daily Utah Chronicle on Dr. Seuss: "The Pulitzer Prize-winning Seuss wrote and illustrated 47 books and sold more than 100 million copies in 18 languages." (5 March 2001)5億The New York Times on Dr. Seuss: "Today Dr. Seuss's 44 books have been translated into 21 languages, selling more than 500 million copies." (2 March 2004) 英語児童文学44アメリカ1億2500万Susan Edgerton e.a. in Imagining the Academy: Higher Education and Popular Culture page 53, on Gilbert Patten: "It is estimated that at least 125 million copies of the Frank Merriwell series (which itself ran to at least 209 books) were sold." (2004)5億LeRoy Ashby in With Amusement For All: A History of American Popular Culture Since 1830 page 145, on Gilbert Patten: "[...] the Merriwell brothers, the heroes of almost 250 children's books, whose total sales of 500 million copies surpassed those of the Bible between 1896 and 1918." (2006)英語冒険209アメリカレフ・トルストイ4億1300万New York Times February 15, 1987ロシア語ロシアJ・K・ローリング3億5000万AFP on J. K. Rowling: "Rowling's stories of boy wizard Harry Potter have sold almost 350 million copies around the world in some 65 languages." (8 May 2008) 4億NineMSN on J. K. Rowling: "Rowling has amassed an estimated $1.2 billion fortune from the Potter series, which has sold over 400 million books worldwide and spawned a $15 billion industry." (23 March 2008)英語『ハリー・ポッター』10イギリス2億5000万The Chicago Tribune on Jackie Collins: "More than 250 million copies of her books have been sold to fans in more than 40 countries" (1 January 2007)4億The Guardian on Jackie Collins: "One of the world's bestselling writers with more than 400 million books sold in over 40 countries. " (27 June 2004)英語恋愛25イギリスホレイショ・アルジャー2億The Chinook Observer on Horatio Alger, Jr.: "Americans bought 200 million copies of his dime novels -- with intriguing titles like Raggedy Dick and Sink or Swim. " (30 March 2005)4億Time magazine on Horatio Alger: "[...] that have sold from 100 million to 400 million copies, depending on which literary historian you believe." (12 February 1973)英語ダイムノヴェル135アメリカR・L・スタイン1億The Hindu on R. L. Stine: "As R.L. Stine points out (and he should know, having sold over a 100 million copies of over 160 different spooky stories)" (7 September 2003)4億Pittsburh Post-Gazette on R. L. Stine: "Altogether, Stine has sold more than 400 million books." (8 April 2007) 英語『グースバンプス』、『Fear Street』160アメリカ4億Latin American Herald Tribune on Corin Tellado: "In the course of her life she published more than 4,000 romance novels that sold 400 million copies, which earned her a place in the Guinness Book of Records where she has been a fixture since 1994." (11 April 2009)4億AFP on Corin Tellado: "Corin Tellado, Spain's most prolific romantic novelist whose books sold over 400 million copies, died Saturday at the age of 81, three days after she finished her last novel, a hospital official said." (11 April 2009) スペイン語恋愛4000スペインシドニィ・シェルダン3億2500万Variety on Sidney Sheldon: "A NEW MILESTONE FOR Sidney Sheldon, who has sold more than 325 million books" (6 October 1995)4億The Columbus Dispatch on Sidney Sheldon: "He was one of the world's most translated authors, selling more than 400 million books in 180 countries." (January 31 2007)英語サスペンス 19アメリカアレクサンドル・プーシキン3億5700万ロシア語ロマン主義文学（小説・詩・戯曲）ロシアスティーヴン・キング3億ABC Australia on Stephen King: "Stephen King, author of more than 40 novels with sales of around 300 million copies, [...]" (12 November 2006) 3億5000万BBC on Stephen King: "But - after selling 350 million copies of his horror and suspense books - the author's latest work draws on a series of events which almost broke him." (22 November 2006)英語ホラー、ファンタジー70アメリカ赤川次郎3億Nishi-Nippon Shinbun (Japanese Language, 25 February 2007)3億3000万日経エックストレンド: "累計発行部数は3億3000万部超え 赤川次郎の「アイデアの源」"(Japanese Language, 23 December 2019)日本語ミステリー620+日本2億3000万Ray Broadmus Browne and Pat Browne in The Guide to United States Popular Culture page 473, on Louis L'Amour: "His books have sold over 230 million copies, making him one of the best- selling authors in modern literary history. " (2001)3億3000万The Jamestown Sun on Louis L'Amour: "More than 330 million copies of his books have been sold, translated into 27 languages." (29 October 2001)英語西部劇（en)101アメリカディーン・R・クーンツ2億The Times of India on Dean Koontz: "His books are published in 38 languages; worldwide sales are nearly 200 million copies, and that figure currently increases more than 17 million copies per year." (22 July 2003)3億2500万The OC Register on Dean Koontz: "Admitting to finally having found a great editor at Bantam, the author, who has sold 325 million books in 38 languages, talked about his craft. " (September 25 2007)英語スリラー60アメリカE・S・ガードナー1億The New York Sun on Erle Stanley Gardner: "Erle Stanley Gardner (whose Perry Mason stories sold more than a 100 million books)" (20 July 2005)3億2500万The New York Times on Erle Stanley Gardner: "Gardner's books continue to be reissued regularly both here and abroad. Sales to date exceed 325 million copies." (22 November 1992)英語ミステリー,『ペリー・メイスン』140アメリカ金庸1億The International HeraldTribune on Jin Yong: "Jin Yong is an even more popular novelist whose lengthy kung fu fantasies have sold more than 100 million copies" (20 June 2000)3億The People's Daily on Jin Yong: "Jin Yong, born in Zhejiang in East China, is the world's biggest-selling author of martial arts novels, having sold almost 300 million copies of his works." (11 April 2005)中国語武侠15香港、中国3億BBC AudioBooks catalogue on Janet Dailey: "Janet Dailey has written more than 100 novels and is one of the world's topselling women writers, with more than 300 million copies of her books sold in nineteen languages in ninety-eight countries" (2007)3億Pamela Regis in A Natural History of the Romance Novel page 159 on Janet Dailey: "There are 300 million copies of her books in print, making her the third best-selling