World of Tiers
1. The Maker of Universes (1965)
2. The Gates of Creation (1966)
3. A Private Cosmos (1968)
4. Behind the Walls of Terra (1970)
5. The Lavalite World (1977)
6. Red Orc's Rage (1991)
7. More Than Fire (1993)
The World of Tiers Volume 2 (omnibus) (1979)
The World of Tiers Volume 1 (omnibus) (1986)

Herald Childe
1. The Image of the Beast (1968)
2. Blown: or Sketches Among the Ruins of My Mind (1969)
3. Traitor to the Living (1973)

Doc Caliban and Lord Grandrith
A Feast Unknown (1969)
Lord of the Trees (1970)
The Mad Goblin (1970)
     aka Keepers of the Secrets

Dayworld
1. Dayworld (1984)
2. Dayworld Rebel (1987)
3. Dayworld Breakup (1990)

The Green Odyssey (1957)
Flesh (1960)
A Woman a Day (1960)
     aka The Day of Timestop / Timestop!
The Lovers (1961)
Cache from Outer Space (1962)
Fire and the Night (1962)
Inside Outside (1964)
Tongues of the Moon (1964)
Dare (1965)
The Gate of Time (1966)
     aka Two Hawks from Earth
Night of Light (1966)
Lord Tyger (1970)
Love Song (1970)
The Stone God Awakens (1970)
The Wind Whales of Ishmael (1971)
Time's Last Gift (1972)
The Other Log of Phileas Fogg (1973)
The Adventure of the Peerless Peer (1974) (writing as John H Watson)
     aka The Adventures of the Peerless Peer
Venus on the Half-Shell (1975) (writing as Kilgore Trout)
Ironcastle (1976) (with J H Rosny aîné)
Dark Is the Sun (1979)
Jesus on Mars (1979)
The Unreasoning Mask (1981)
Stations of the Nightmare (1982)
Greatheart Silver (1982)
A Barnstormer in Oz (1982)
Nothing Burns in Hell (1988)
The Caterpillar's Question (1992) (with Piers Anthony)
Naked Came The Farmer (1998) (with Nancy Atherton, Terry Bibo, Steven Burgauer, Dorothy Cannell, David Everson, Joseph Flynn, Julie Kistler, Jerry Klein, Bill Knight, Tracy Knight, Garry Moore and Joel Steinfeldt)
The City Beyond Play (2007) (with Danny Adams)
The Evil in Pemberley House (2009) (with Win Scott Eckert)

Empire of the Nine (1988)
The Other in the Mirror (2009)
Rastignac the Devil / Despoilers of the Golden Empire (2010) (with Randall Garrett)
The Flying Eyes / Some Fabulous Yonder (2012) (with J Hunter Holly)
Gods of Opar (2012) (with Christopher Paul Carey)

Strange Relations (1960)
The Celestial Blueprint: And Other Stories (1962)
The Alley God (1962)
Down in the Black Gang: And Other Stories (1971)
The Book of Philip Jose Farmer (1973)
Riverworld War: The Surpressed Fiction of Philip Jose Farmer (1980)
The Cache (1981)
Father to the Stars (1981)
The Purple Book (1982)
The Grand Adventure (1983)
The Classic Philip Jose Farmer, 1952-1964 (1984)
The Classic Philip Jose Farmer, 1964-1973 (1984)
Riders of the Purple Wage (1992)
The Best of Philip Jose Farmer (2005)
Pearls from Peoria (2006)
Stranger Relations (2006)
Up from the Bottomless Pit: And Other Stories (2007)
Venus on the Half-Shell and Others (2008)
They Twinkled Like Jewels (2009)
Up the Bright River (2010)
Science Fiction Gems, Volume Two (2011) (with James Blish, Marion Zimmer Bradley, Roger Dee, Philip K Dick, C M Kornbluth, Alan E Nourse, Rog Phillips, Robert Silverberg and Manly Wade Wellman)

Riverworld
1. To Your Scattered Bodies Go (1971)
2. The Fabulous Riverboat (1971)
3. The Dark Design (1977)
4. The Magic Labyrinth (1980)
5. The Gods of Riverworld (1983)
6. River of Eternity (1983)
Riverworld: And Other Stories (1979)
To Your Scattered Bodies Go / Fabulous Riverboat (omnibus) (2010)

Doc Savage
183. Escape from Loki (1991) (as by Kenneth Robeson)
Doc Savage: His apocalyptic life (1973)

Philip Jose Farmer's The Dungeon (with Robin Wayne Bailey, Charles de Lint)
The Dungeon 2 (omnibus) (2003)

Mother Was a Lovely Beast (1974)
Tales of Riverworld (1992) (with Richard Gilliam, Martin H Greenberg and Edward E Kramer)
Quest to Riverworld (1993) (with Richard Gilliam, Martin H Greenberg and Edward E Kramer)

An ABC of Science Fiction (1966)
Dangerous Visions 1 (1967)
Worlds of If 116 (1967)
The Hugo Winners 1968-1970 (1971)
The Best Science Fiction of the Year (1972)
Nova 3 (1973)
     aka The Outdated Man
The Best Science Fiction of the Year 3 (1974)
Modern Science Fiction (1974)
Nebula Award Stories 10 (1975)
The Best of New Dimensions (1979)
After the Fall (1980)
A Century of Science Fiction 1950-1959 (1981)
A Treasury of Modern Fantasy (1981)
Sci-Fi Private Eye (1984)
Great Science Fiction of the 20th Century (1987)
Quest to Riverworld (1993)
Science Fiction, Science Fact, and You (1995)
The Science Fiction Century (1996)
Visions of Wonder (1996)
Tales of The Cthulhu Mythos (1999)

Philip Jose Farmer (1990) by Phil Stephensen-Payne