- Peter and Jane; Or, The Missing HeirAuthor: S. (Sarah) MacnaughtanReleased on Project Gutenberg: July 12, 2008
- Peter Bell the ThirdAuthor: Percy Bysshe ShelleyReleased on Project Gutenberg: November 1, 2003
- Peter Biddulph: The Story of an Australian SettlerAuthor: William Henry Giles KingstonReleased on Project Gutenberg: October 17, 2007
- Peter IbbetsonAuthor: George Du MaurierReleased on Project Gutenberg: February 1, 2006
- Peter PanAuthor: J. M. (James Matthew) BarrieReleased on Project Gutenberg: June 25, 2008
- Peter Pan in Kensington GardensAuthor: J. M. (James Matthew) BarrieReleased on Project Gutenberg: May 1, 1998
- Peter Parley's Tales About America and AustraliaAuthor: Samuel G. (Samuel Griswold) Goodrich, T. Wilson, Samuel WilliamsReleased on Project Gutenberg: October 17, 2005
- Peter Piper's Practical Principles of Plain and Perfect PronunciationAuthor: AnonymousReleased on Project Gutenberg: April 9, 2008
- Peter Plymley's Letters, and Selected EssaysAuthor: Sydney SmithReleased on Project Gutenberg: May 1, 2003
- Peter Prim's Profitable Present: To the little misses and masters of the United StatesAuthor: UnknownReleased on Project Gutenberg: February 26, 2008
- Peter Pry's Puppet Show: Part the II.Author: UnknownReleased on Project Gutenberg: March 2, 2008
- Peter Ruff and the Double FourAuthor: E. Phillips (Edward Phillips) OppenheimReleased on Project Gutenberg: November 1, 1999
- Peter SchlemihlAuthor: Adelbert von Chamisso, Henry MorleyReleased on Project Gutenberg: March 1, 2004
- Peter SchlemihlAuthor: Adelbert von Chamisso, George Cruikshank, John BowringReleased on Project Gutenberg: June 26, 2007
- Peter SimpleAuthor: Frederick MarryatReleased on Project Gutenberg: May 22, 2007
- Peter Simple; and, The Three Cutters, Vol. 1-2Author: Frederick MarryatReleased on Project Gutenberg: August 9, 2004
- Peter Stuyvesant, the Last Dutch Governor of New AmsterdamAuthor: John S. C. (John Stevens Cabot) AbbottReleased on Project Gutenberg: October 20, 2004
- Peter the GreatAuthor: Jacob AbbottReleased on Project Gutenberg: June 21, 2007
- Peter the Hermit: A Tale of EnthusiasmAuthor: Daniel A. (Daniel Ayres) GoodsellReleased on Project Gutenberg: July 25, 2007
- Peter the PriestAuthor: Mór JókaiReleased on Project Gutenberg: December 23, 2007
- Peter the WhalerAuthor: William Henry Giles KingstonReleased on Project Gutenberg: May 15, 2007
- Peter Trawl; Or, The Adventures of a WhalerAuthor: William Henry Giles Kingston, James DurdenReleased on Project Gutenberg: May 15, 2007
- Peter's MotherAuthor: De La Pasture, Henry, Mrs.Released on Project Gutenberg: December 1, 2003
- Peter's Pence: Sailor's Knots, Part 8.Author: W. W. (William Wymark) Jacobs, Will OwenReleased on Project Gutenberg: January 1, 2004
- Peter: A Novel of Which He is Not the HeroAuthor: Francis Hopkinson SmithReleased on Project Gutenberg: October 1, 2003
- Petty Troubles of Married Life, CompleteAuthor: Honoré de BalzacReleased on Project Gutenberg: June 29, 2005
- Petty Troubles of Married Life, First PartAuthor: Honoré de BalzacReleased on Project Gutenberg: July 1, 2004
- Petty Troubles of Married Life, Second PartAuthor: Honoré de BalzacReleased on Project Gutenberg: September 1, 2004
- Peveril of the PeakAuthor: Walter ScottReleased on Project Gutenberg: June 1, 2004
- PG Edition of Netherlands series — CompleteAuthor: John Lothrop MotleyReleased on Project Gutenberg: November 9, 2004
- PhaedoAuthor: Plato, Benjamin JowettReleased on Project Gutenberg: March 1, 1999
- PhaedraAuthor: Jean Racine, Robert Bruce BoswellReleased on Project Gutenberg: November 1, 1999
- PhaedrusAuthor: Plato, Benjamin JowettReleased on Project Gutenberg: February 1, 1999
- Phaethon: Loose Thoughts for Loose ThinkersAuthor: Charles KingsleyReleased on Project Gutenberg: February 1, 2004
- Phantasmagoria and Other PoemsAuthor: Lewis Carroll, A. B. (Arthur Burdett) FrostReleased on Project Gutenberg: September 1, 1996
- Phantastes: A Faerie Romance for Men and WomenAuthor: George MacDonaldReleased on Project Gutenberg: July 11, 2008
- Phantom Fortune, a NovelAuthor: M. E. (Mary Elizabeth) BraddonReleased on Project Gutenberg: February 1, 2004
- Phantom Wires: A NovelAuthor: Arthur Stringer, Arthur William BrownReleased on Project Gutenberg: November 7, 2006
- Pharaoh's Broker: Being the Very Remarkable Experiences in Another World of Isidor WernerAuthor: Ellsworth DouglassReleased on Project Gutenberg: May 2, 2008
- Pharsalia; Dramatic Episodes of the Civil WarsAuthor: Lucan, 39-65Released on Project Gutenberg: July 1, 1996
- Phases of Faith; Or, Passages from the History of My CreedAuthor: Francis William NewmanReleased on Project Gutenberg: April 1, 2004
- Phebe, Her Profession: A Sequel to Teddy: Her BookAuthor: Anna Chapin RayReleased on Project Gutenberg: June 1, 2004
- Phebe, the Blackberry GirlAuthor: Edward LivermoreReleased on Project Gutenberg: February 1, 2004
- Phelim Otoole's Courtship and Other Stories: Traits And Stories Of The Irish Peasantry, The Works of: William Carleton, Volume ThreeAuthor: William Carleton, Flanery, M. L. [Illustrator]Released on Project Gutenberg: June 7, 2005
- Phil Bradley's Mountain BoysAuthor: Boone, Silas K.Released on Project Gutenberg: August 8, 2007
- Phil Purcel, The Pig-Driver; The Geography Of An Irish Oath; The Lianhan Shee: Traits And Stories Of The Irish Peasantry, The Works of: William Carleton, Volume ThreeAuthor: William Carleton, Flanery, M. L. [Illustrator]Released on Project Gutenberg: June 7, 2005
- Phil, the FiddlerAuthor: Alger, Horatio, Jr.Released on Project Gutenberg: March 18, 2006
- Philaster; Or, Love Lies a BleedingAuthor: Francis Beaumont, John FletcherReleased on Project Gutenberg: January 1, 2004
- PhilebusAuthor: Plato, Benjamin JowettReleased on Project Gutenberg: May 1, 1999
- Philip Dru: Administrator; A Story of Tomorrow, 1920-1935Author: Edward Mandell HouseReleased on Project Gutenberg: October 1, 2004
- Philip Gilbert Hamerton: An Autobiography, 1834-1858, and a Memoir by His Wife, 1858-1894Author: Hamerton, Eugénie, Philip Gilbert HamertonReleased on Project Gutenberg: July 1, 2005
- Philip Steele of the Royal Northwest Mounted PoliceAuthor: James Oliver CurwoodReleased on Project Gutenberg: November 1, 2003
- Philip Winwood: A Sketch of the Domestic History of an American Captain in the War of Independence; Embracing Events that Occurred between and during the Years 1763 and 1786, in New York and London: written by His Enemy in War, Herbert Russell, Lieutenant in the Loyalist Forces.Author: Robert Neilson StephensReleased on Project Gutenberg: March 30, 2005
- Philippian Studies: Lessons in Faith and Love from St. Paul's Epistle to the PhilippiansAuthor: H. C. G. (Handley Carr Glyn) MouleReleased on Project Gutenberg: April 28, 2008
- Philippine Folk TalesAuthor: Mabel Cook ColeReleased on Project Gutenberg: July 4, 2004
- Philippine Folk-TalesAuthor: Clara Kern Bayliss, Laura Estelle Watson Benedict, Fletcher Gardner, Berton L. (Berton Lewis) Maxfield, Millington, W. H.Released on Project Gutenberg: February 1, 2004
- Philippine Folklore StoriesAuthor: Miller, John MauriceReleased on Project Gutenberg: January 1, 2004
- PhilistiaAuthor: Grant AllenReleased on Project Gutenberg: July 1, 2004
- Philo-Judæus of AlexandriaAuthor: Norman BentwichReleased on Project Gutenberg: January 10, 2005
- PhiloktetesAuthor: Sophocles, Gregory McNameeReleased on Project Gutenberg: February 1, 1997