- Doctor Luttrell's First PatientAuthor: Rosa Nouchette CareyReleased on Project Gutenberg: October 4, 2007
- Doctor MarigoldAuthor: Charles DickensReleased on Project Gutenberg: August 1, 1998
- Doctor PascalAuthor: Émile Zola, Serrano, Mary J. (Mary Jane), -Released on Project Gutenberg: January 1, 2004
- Doctor Rabbit and Brushtail the FoxAuthor: Thomas C. (Thomas Clark) Hinkle, Milo WinterReleased on Project Gutenberg: June 23, 2006
- Doctor TherneAuthor: H. Rider (Henry Rider) HaggardReleased on Project Gutenberg: April 22, 2006
- Doctor ThorneAuthor: Anthony TrollopeReleased on Project Gutenberg: April 1, 2002
- Doctrina Christiana: The first book printed in the Philippines, Manila, 1593.Author: Edwin WolfReleased on Project Gutenberg: June 23, 2005
- Documentary History of the Rio Grande Pueblos of New Mexico; I. Bibliographic Introduction: Papers of the School of American Archaeology, No. 13Author: Adolph Francis Alphonse BandelierReleased on Project Gutenberg: September 4, 2007
- Dog of St. Bernard and Other StoriesAuthor: AnonymousReleased on Project Gutenberg: November 8, 2007
- Dogs and All about ThemAuthor: Robert LeightonReleased on Project Gutenberg: February 1, 2004
- Dollars and SenseAuthor: William Crosbie HunterReleased on Project Gutenberg: August 27, 2007
- Dolly and I: A Story for Little FolksAuthor: Oliver OpticReleased on Project Gutenberg: May 12, 2008
- Dolly DialoguesAuthor: Anthony HopeReleased on Project Gutenberg: February 1, 1998
- Dombey and SonAuthor: Charles DickensReleased on Project Gutenberg: February 1, 1997
- Domestic Cookery, Useful Receipts, and Hints to Young HousekeepersAuthor: Elizabeth E. (Elizabeth Ellicott) LeaReleased on Project Gutenberg: October 1, 2005
- Domestic Manners of the AmericansAuthor: Frances Milton TrollopeReleased on Project Gutenberg: November 1, 2003
- Domestic PeaceAuthor: Honoré de Balzac, Clara Bell, Ellen MarriageReleased on Project Gutenberg: August 2, 2004
- Domestic Pleasures, or, the Happy Fire-sideAuthor: Frances Bowyer VauxReleased on Project Gutenberg: April 1, 2005
- Domesticated animalsAuthor: Nathaniel Southgate ShalerReleased on Project Gutenberg: May 23, 2008
- Domnei: A Comedy of Woman-WorshipAuthor: James Branch CabellReleased on Project Gutenberg: January 1, 2006
- Don Carlos: A PlayAuthor: Friedrich Schiller, Boylan, R. Dillon (Richard Dillon)Released on Project Gutenberg: December 8, 2004
- Don Garcia of Navarre; Or, the Jealous Prince. A Heroic Comedy in Five Acts.Author: MolièreReleased on Project Gutenberg: October 1, 2004
- Don JuanAuthor: Byron, George Gordon Byron, BaronReleased on Project Gutenberg: June 6, 2007
- Don Juan TenorioAuthor: José Zorrilla, A. S. Kline, Mayberry, Nancy [Translator]Released on Project Gutenberg: March 1, 2004
- Don OrsinoAuthor: F. Marion (Francis Marion) CrawfordReleased on Project Gutenberg: August 19, 2004
- Don QuixoteAuthor: Miguel de Cervantes Saavedra, John OrmsbyReleased on Project Gutenberg: July 27, 2004
- Don Rodriguez; Chronicles of Shadow ValleyAuthor: Lord DunsanyReleased on Project Gutenberg: July 1, 2003
- Don Strong, Patrol LeaderAuthor: William HeyligerReleased on Project Gutenberg: October 31, 2004
- Donahoe's Magazine, Volume 15, No. 1, January 1886Author: VariousReleased on Project Gutenberg: June 8, 2007
- Donal GrantAuthor: George MacDonaldReleased on Project Gutenberg: December 1, 2000
- Donatello, by Lord BalcarresAuthor: Crawford, David Lindsay, Earl ofReleased on Project Gutenberg: April 1, 2006
- Donovan Pasha, and Some People of Egypt — CompleteAuthor: Gilbert ParkerReleased on Project Gutenberg: November 18, 2004
- Donovan Pasha, and Some People of Egypt — Volume 1Author: Gilbert ParkerReleased on Project Gutenberg: August 1, 2004
- Donovan Pasha, and Some People of Egypt — Volume 2Author: Gilbert ParkerReleased on Project Gutenberg: August 1, 2004
- Donovan Pasha, and Some People of Egypt — Volume 3Author: Gilbert ParkerReleased on Project Gutenberg: August 1, 2004
- Donovan Pasha, and Some People of Egypt — Volume 4Author: Gilbert ParkerReleased on Project Gutenberg: August 1, 2004
- Doom CastleAuthor: Neil MunroReleased on Project Gutenberg: May 5, 2007
- DopeAuthor: Sax RohmerReleased on Project Gutenberg: January 1, 1998
- Dora Deane; Or, The East India UncleAuthor: Mary Jane HolmesReleased on Project Gutenberg: August 1, 2004
- Dora ThorneAuthor: Charlotte M. BrameReleased on Project Gutenberg: October 1, 2000
- DorianAuthor: Nephi AndersonReleased on Project Gutenberg: June 1, 2004
- Dorothy and the Wizard in OzAuthor: L. Frank (Lyman Frank) BaumReleased on Project Gutenberg: February 1, 1996
- Dorothy and the Wizard in OzAuthor: L. Frank (Lyman Frank) Baum, John R. (John Rea) NeillReleased on Project Gutenberg: September 10, 2007
- Dorothy Dainty at GlenmoreAuthor: Brooks, AmyReleased on Project Gutenberg: February 1, 2005
- Dorothy Dainty's Gay TimesAuthor: Brooks, AmyReleased on Project Gutenberg: October 14, 2004
- Dorothy Dale's Camping DaysAuthor: Penrose, MargaretReleased on Project Gutenberg: June 18, 2005
- Dorothy Dale's Queer HolidaysAuthor: Penrose, MargaretReleased on Project Gutenberg: April 18, 2005
- Dorothy Dale: A Girl of To-DayAuthor: Penrose, MargaretReleased on Project Gutenberg: May 1, 2004
- Dorothy Vernon of Haddon HallAuthor: Charles MajorReleased on Project Gutenberg: January 11, 2005
- Dorothy's Mystical Adventures in OzAuthor: Evans, Robert J.Released on Project Gutenberg: November 1, 2005
- Dorothy's TravelsAuthor: Evelyn Raymond, Schneider, S. [Illustrator]Released on Project Gutenberg: May 28, 2008
- Dot and the KangarooAuthor: Pedley, Ethel C.Released on Project Gutenberg: February 1, 2003
- Dot and the KangarooAuthor: Pedley, Ethel C., Frank P. MahonyReleased on Project Gutenberg: July 22, 2006
- Dotty Dimple at Her Grandmother'sAuthor: Sophie MayReleased on Project Gutenberg: February 27, 2007
- Dotty Dimple At HomeAuthor: Sophie MayReleased on Project Gutenberg: May 8, 2008
- Dotty Dimple at PlayAuthor: Sophie MayReleased on Project Gutenberg: November 1, 2003
- Dotty Dimple Out WestAuthor: Sophie MayReleased on Project Gutenberg: July 29, 2005
- Dotty Dimple's FlyawayAuthor: Sophie MayReleased on Project Gutenberg: September 11, 2006
- Double Dealing: Sailor's Knots, Part 11.Author: W. W. (William Wymark) Jacobs, Will OwenReleased on Project Gutenberg: January 1, 2004
- Double Trouble; Or, Every Hero His Own VillainAuthor: Herbert Quick, Orson LowellReleased on Project Gutenberg: October 3, 2006