Carol Oates — 21st Century Irish Author
- Unfinished, Short Novel, 2017
Joyce Carol Oates — 20/21st Century American Author
- Angel of Light, Science Fiction Novel, 1977
- Love and Its Derangements, Poetry Collection
- Zombie, Novel, 2003
- I Lock My Door Upon Myself, Short Novel, 2004
- The Rise of Life on Earth, Novel, 2004
- Beasts, Novel, 2004
- Black Water, Novel, 2004
- The Assignation, Short Story Collection, 2004
- First Love, Short Novel, 2004
- Big Mouth and Ugly Girl, Juvenile Novel, 2004
- Starr Bright Will Be with You Soon, Novel, 2004 (as Rosamund Smith)
- The Tattooed Girl, Novel, 2004
- Ontological Proof of My Existence, Drama, 2004
- Miracle Play, Drama, 2004
- The Triumph of the Spider Monkey, Drama, 2004
- The Falls, Novel, 2004
- Rape: A Love Story, Novel, 2005
- American Appetites, Novel, 2005
- Blonde, Novel, 2005
- Man Crazy, Novel, 2006
- Unholy Loves, Novel, 2006
- White Girl / Black Girl, Novel, 2007
- The Garden of Earthly Delights, Novel, 2008
- Expensive People, Novel, 2010
- Them, Novel, 2011
- Foxfire, Novel, 2011
- Marya: A Life, Novel, 2012
- Daddy Love, Novel, 2014
- Patricide, Short Fiction, 2016
- Haunted: Tales of the Grotesque, Short Story Collection, 2016
- We Were the Mulvaneys, Novel, 2017
- Wonderland, Novel, 2019
- Solstice, Novel, 2019
- Bellefleur, Novel, 2020
- A Bloodsmoor Romance, Novel, 2020
- The Sign of the Beast, Short Fiction, 2020
- Mysteries of Winterthurn, Novel, 2020
- A Book of American Martyrs, Novel, 2021
- Broke Heart Blues, Novel, 2021
- Mudwoman, Novel, 2021
- I’ll Take You There, Novel, 2021
- Hazards of Time Travel, Novel, 2022
- The Gravedigger’s Daughter, Novel, 2022
- The Man Without a Shadow, Novel, 2022
- Mystery, Inc., Short Fiction, 2022
- Breathe: A Novel, Novel, 2022
- My Life As a Rat, Novel, 2022
- After the Wreck, I Picked Myself Up, Spread My Wings, and Flew Away, Novel, 2022
- With Shuddering Fall, Novel, 2022
- Pursuit: A Novel of Suspense, Novel, 2022
- A Widow’s Story: A Memoir, Memoir, 2023
Chigozie Obioma — 21st Century Nigerian Author
- The Fisherman, Novel, 2021
Flann O’Brien — 20th Century Irish Author
- The Hard Life, Novel, 2006
- At Swim-Two-Birds, Novel, 2008
- The Third Policeman, Novel, 2010
- The Poor Mouth, Novel, 2011
- The Dalkey Archive, Novel, 2015
Sean O’Casey
- In the Shadow of the Glen, Drama, 1967
- The Plough and the Stars, Drama, 1967
- Juno and the Paycock, Drama, 1967
Flannery O’Connor — 20th Century American Author
- Wise Blood, Novel, 1995
- A Good Man is Hard to Find, Novel
- The Violent Bear It Away, Short Novel
Peter O’Donnell — 20th Century British Author
- Modesty Blaise, Novel (based on comic), 2019
Kenzaburo Oe — 20th Century Japanese Author — 1994 Nobel Prize
- Aghwee the Sky Monster, Short Novel, 1998
- Teach Us To Outgrow Our Madness, Short Novel, 1998
- Prize Stock, Short Novel, 1998
- The Day He Himself Shall Wipe My Tears Away, Short Novel, 1998
- Nip the Buds, Shoot the Kids, Novel, 1999
- An Echo of Heaven, Novel, 1999
- Rouse Up O Young Men of the New Age, Novel, 2002
- A Personal Matter, Novel, 2005
Maggie O’Farrell — 21st Century British (Northern Ireland) Author
- Hamnet, Novel, 2021
Mori Ogai
- Vita Sexualis, Novel, 2004
- The Wild Geese, Novel, 2005
Yukio Ogawa
- The Diving Pool, Short Novel, 2008
- Pregnancy Diary, Short Novel, 2008
- Dormitory, Short Novel, 2008
- The Housekeeper and the Professor, Novel, 2010
- Hotel Iris, Novel, 2010
- Revenge: Eleven Dark Tales, Story Collection, 2014
- The Memory Police, Novel, 2020
John O’Hara
- Appointment in Sammara, Novel, 2001
- Butterfield 8, Novel, 2003
- The Farmer’s Hotel, Novel, 2004
- A Rage To Live, Novel, 2021
- From the Terrace, Novel, 2022
Kanoko Okamoto — 20th Century Japanese Author — 1994 Nobel Prize
- The Tale of an Old Geisha and Other Stories, Short Story Collection, 2000
Ben Okri — 20th Century African Author
- The Famished Road, Novel, 2019
Chinelo Okparanta — 21st Century Nigerian/American Author
- Under the Udala Trees, Novel, 2021
Hikaru Okuizumi — 20th Century Japanese Author
- The Stones Cry Out, Novel, 1999
Auður Ava Ólafsdóttir — 21st Century Icelandic Author
- Miss Iceland, Novel, 2021
Claude Ollier — 20th Century French Author
- The Mise-en-Scène, Novel, 2017
Pola Oloixarac — 21st Century Argentine Author
- Savage Theories, Novel, 2021
Olsen
- Night Watch, Popular Fiction (Novel)
Stewart O’Nan
- Last Night at the Lobster, Novel, 2020
- The Speed Queen, Novel, 2020
Riku Onda — 21st Century Japanese Author
- The Aosawa Murders, Novel, 2021
Michael Ondaatje — 20th Century Canadian Author (Sri Lanka)
- The English Patient, Novel, 1997
- In the Skin of a Lion, Novel, 1998
- Anil’s Ghost, Novel, 2000
- Divisadero, Novel, 2007
Eugene O’Neill — 20th Century American Playwright
- The Great God Brown, Drama,1964
Baroness Orczy
- The Scarlet Pimpernel, Novel, 2001
George Orwell
- Animal Farm, Novel, 1963
- 1984, Novel, 1994
- Burmese Days, Novel, 2003
- Coming Up for Air, Novel, 2022
- Down and Out in Paris and London, Essay, 2022
Keikichi Osaka — 20th Century Japanese Author
- The Ginza Ghost and Other Stories, Short Stories (Mysteries), 2020
Otsuichi — 21st Century Japanese Author
- Goth: A Novel of Horror, novel (horror), 2016
Julie Otsuka – 21st Century Japanese/American Author
- The Buddha in the Attic, Novel, 2013
Otway
- Venice Preserved, Drama, 1967
Patrik Ourednik – 21st Century Czech Author
- Case Closed, Novel, 2010
Delia Owens — 21st Century American Author
- Where the Crawdads Sing, Novel, 2020
Hiroko Oyamada — 21st Century Japanese Author
- The Factory, Novel, 2020
- The Hole, Novel, 2020
Amos Oz — 20th Century Israeli Author
- Don’t Call It Night, Novel, 2016
- Panther In the Basement, Novel, 2021
Asaka Ozeki
- Handbook of Quality Tools, Non-Fiction (Business)
Ruth L. Ozeki
- My Year of Meats, Novel, 1998
- The Book of Form and Emptiness, Novel, 2022
- A Tale for the Time Being, Novel, 2022
Cynthia Ozick
- Shawl, The Rosa, Short Novel, 1996
- The Puttermessar Papers, Novel, 1998
- The Messiah of Stockholm, Novel, 1998
- The Cannibal Galaxy, Novel, 1998