- Five Hundred Dollars: First published in the "Century Magazine"Author: Heman White ChaplinReleased on Project Gutenberg: October 12, 2007
- Five Hundred Dollars; or, Jacob Marlowe's SecretAuthor: Alger, Horatio, Jr.Released on Project Gutenberg: May 2, 2007
- Five lectures on blindnessAuthor: Kate M. FoleyReleased on Project Gutenberg: July 30, 2007
- Five Lectures on ReincarnationAuthor: Swami AbhedanandaReleased on Project Gutenberg: January 1, 2005
- Five Little FriendsAuthor: Sherred Willcox AdamsReleased on Project Gutenberg: April 1, 2005
- Five Little FriendsAuthor: Sherred Willcox Adams, Maud Petersham, Miska PetershamReleased on Project Gutenberg: May 17, 2008
- Five Little Peppers AbroadAuthor: Margaret SidneyReleased on Project Gutenberg: November 1, 2004
- Five Little Peppers and How They GrewAuthor: Margaret SidneyReleased on Project Gutenberg: August 1, 2001
- Five Little Peppers and their FriendsAuthor: Margaret SidneyReleased on Project Gutenberg: September 1, 2004
- Five Little Peppers at SchoolAuthor: Margaret Sidney, Hermann HeyerReleased on Project Gutenberg: July 25, 2008
- Five Little Peppers Grown UpAuthor: Margaret SidneyReleased on Project Gutenberg: February 1, 2005
- Five Little Peppers MidwayAuthor: Margaret SidneyReleased on Project Gutenberg: May 1, 2004
- Five Little PlaysAuthor: Alfred SutroReleased on Project Gutenberg: December 29, 2004
- Five months at AnzacAuthor: Joseph Lievesley BeestonReleased on Project Gutenberg: May 24, 2005
- Five Months on a German Raider: Being the Adventures of an Englishman Captured by the 'Wolf'Author: Frederic George TrayesReleased on Project Gutenberg: September 14, 2005
- Five Nights: A NovelAuthor: Victoria CrossReleased on Project Gutenberg: July 24, 2004
- Five of Maxwell's PapersAuthor: James Clerk MaxwellReleased on Project Gutenberg: January 1, 2004
- Five Pebbles from the BrookAuthor: George Bethune EnglishReleased on Project Gutenberg: November 20, 2006
- Five SermonsAuthor: Henry Benjamin WhippleReleased on Project Gutenberg: August 1, 2005
- Five TalesAuthor: John GalsworthyReleased on Project Gutenberg: June 14, 2006
- Five Thousand an Hour: How Johnny Gamble Won the HeiressAuthor: George Randolph ChesterReleased on Project Gutenberg: August 1, 2003
- Five Thousand Dollars RewardAuthor: Pinkerton, A. FrankReleased on Project Gutenberg: December 1, 2005
- Five Thousand Miles Underground; Or, the Mystery of the Centre of the EarthAuthor: Rockwood, RoyReleased on Project Gutenberg: January 1, 2004
- Five Weeks in a Balloon: Or, Journeys and Discoveries in Africa by Three EnglishmenAuthor: Jules VerneReleased on Project Gutenberg: November 1, 2002
- Five years in New Zealand (1859 to 1864)Author: Booth, Robert B.Released on Project Gutenberg: March 28, 2006
- Five Years of TheosophyAuthor: G. R. S. (George Robert Stow) MeadReleased on Project Gutenberg: December 18, 2004
- Flag and Fleet: How the British Navy Won the Freedom of the SeasAuthor: William WoodReleased on Project Gutenberg: November 17, 2006
- Flag of the FreeAuthor: Edward Smyth JonesReleased on Project Gutenberg: August 4, 2007
- Flame and ShadowAuthor: Sara TeasdaleReleased on Project Gutenberg: July 1, 1996
- FlamesAuthor: Robert HichensReleased on Project Gutenberg: December 4, 2004
- Flaming JuneAuthor: Vaizey, George de Horne, Mrs.Released on Project Gutenberg: April 17, 2007
- Flamsted quarriesAuthor: Mary E. (Mary Ella) Waller, Nelson, G. Patrick [Illustrator]Released on Project Gutenberg: November 30, 2007
- Flappers and PhilosophersAuthor: F. Scott (Francis Scott) FitzgeraldReleased on Project Gutenberg: August 1, 2003
- Flatland: A Romance of Many DimensionsAuthor: Edwin Abbott AbbottReleased on Project Gutenberg: January 1, 1994
- Flatland: A Romance of Many DimensionsAuthor: Edwin Abbott AbbottReleased on Project Gutenberg: January 1, 1995
- Fletcher of MadeleyAuthor: Allen, Margaret, George S. (George Scott) RailtonReleased on Project Gutenberg: July 1, 2004
- Fleurs De Lys, and Other PoemsAuthor: Arthur WeirReleased on Project Gutenberg: December 1, 2004
- Flight From TomorrowAuthor: H. Beam PiperReleased on Project Gutenberg: May 27, 2006
- Flint and Feather: Collected VerseAuthor: E. Pauline JohnsonReleased on Project Gutenberg: June 24, 2004
- Flint: His Faults, His Friendships and His FortunesAuthor: Maud Wilder GoodwinReleased on Project Gutenberg: June 6, 2007
- Flip's "Islands of Providence"Author: Annie F. (Annie Fellows) Johnston, Elizabeth Fearne BonsallReleased on Project Gutenberg: July 6, 2008
- Flip: A California RomanceAuthor: Bret HarteReleased on Project Gutenberg: March 27, 2006
- Flood TideAuthor: Sara Ware BassettReleased on Project Gutenberg: July 23, 2006
- Floor Games; a companion volume to "Little Wars"Author: H. G. (Herbert George) WellsReleased on Project Gutenberg: January 1, 2003
- Florence and Northern Tuscany with Genoa: With Sixteen Illustrations in Colour by William Parkinson and Sixteen Other Illustrations, Second EditionAuthor: Edward HuttonReleased on Project Gutenberg: August 8, 2005
- Flower FablesAuthor: Louisa May AlcottReleased on Project Gutenberg: September 1, 1994
- Flower of the DuskAuthor: Myrtle ReedReleased on Project Gutenberg: March 27, 2006
- Flower of the North: A Modern RomanceAuthor: James Oliver CurwoodReleased on Project Gutenberg: December 1, 2003
- Flowers and Flower-Gardens: With an Appendix of Practical Instructions and Useful Information Respecting the Anglo-Indian Flower-GardenAuthor: David Lester RichardsonReleased on Project Gutenberg: May 1, 2004
- Flowers from a Persian Garden and Other PapersAuthor: W. A. (William Alexander) CloustonReleased on Project Gutenberg: October 26, 2005
- Flowing GoldAuthor: Rex BeachReleased on Project Gutenberg: September 1, 2004
- Floyd Grandon's HonorAuthor: Amanda M. DouglasReleased on Project Gutenberg: January 20, 2008
- Fly LeavesAuthor: Charles Stuart CalverleyReleased on Project Gutenberg: December 1, 2003
- Flying for France: With the American Escadrille at VerdunAuthor: James R. (James Rogers) McConnell, Paul Ayres RockwellReleased on Project Gutenberg: November 1, 2004
- Flying Machines: Construction and Operation: A Practical Book Which Shows, in Illustrations, Working Plans and Text, How to Build and Navigate the Modern AirshipAuthor: William J. (William James) Jackman, Octave Chanute, Thomas Herbert RussellReleased on Project Gutenberg: May 1, 1997
- Foch the Man: A Life of the Supreme Commander of the Allied ArmiesAuthor: Clara E. (Clara Elizabeth) LaughlinReleased on Project Gutenberg: January 14, 2006
- Foe-FarrellAuthor: Arthur Quiller-CouchReleased on Project Gutenberg: August 25, 2006
- FoesAuthor: Mary JohnstonReleased on Project Gutenberg: August 20, 2005
- Foes in AmbushAuthor: Charles KingReleased on Project Gutenberg: February 20, 2006
- Foliage: Various PoemsAuthor: W. H. (William Henry) DaviesReleased on Project Gutenberg: November 1, 2005