Deathworld
1. Deathworld (1960)
2. Deathworld Two (1964)
3. Deathworld Three (1968)
The Deathworld Trilogy (omnibus) (1999)

Stainless Steel Rat
1. The Stainless Steel Rat (1961)
2. The Stainless Steel Rat's Revenge (1970)
3. The Stainless Steel Rat Saves the World (1972)
4. The Stainless Steel Rat Wants You! (1978)
5. The Stainless Steel Rat for President (1982)
6. A Stainless Steel Rat Is Born (1985)
7. The Stainless Steel Rat Gets Drafted (1987)
8. The Stainless Steel Rat Sings the Blues (1994)
9. Stainless Steel Visions (1992)
10. The Stainless Steel Rat Goes to Hell (1996)
11. The Stainless Steel Rat Joins the Circus (1999)
The Adventures of the Stainless Steel Rat (1983)
You Can Be the Stainless Steel Rat (1985)
A Stainless Steel Trio (omnibus) (2002)
The Stainless Steel Rat Omnibus (omnibus) (2008)
The Stainless Steel Rat Returns (2010)

Saint (Simon Templar) (with Leslie Charteris)
37. Vendetta for the Saint (1964)

To the Stars
1. Homeworld (1980)
2. Wheelworld (1981)
3. Starworld (1981)
To the Stars (omnibus) (1991)

Eden
1. West of Eden (1984)
2. Winter in Eden (1986)
3. Return to Eden (1988)

Hammer and the Cross
1. The Hammer and the Cross (1993)
2. One King's Way (1994)
3. King and Emperor (1996) (with John Holm (Tom Shippey))

Stars and Stripes
1. Stars and Stripes Forever (1998)
2. Stars and Stripes in Peril (2000)
3. Stars and Stripes Triumphant (2001)

Planet of the Damned (1962)
     aka A Sense of Obligation
Plague from Space (1965)
Make Room! Make Room! (1966)
The Man from P.I.G. (1968)
The Technicolor Time Machine (1968)
Captive Universe (1969)
In Our Hands, the Stars (1970)
The Jupiter Legacy (1970)
Spaceship Medic (1970)
The Daleth Effect (1970)
Montezuma's Revenge (1972)
Tunnel Through the Deeps (1972)
     aka A Transatlantic Tunnel, Hurrah!
Stonehenge: Where Atlantis Died (1972) (with Leon E Stover)
Queen Victoria's Revenge (1974)
Star Smashers of the Galaxy Rangers (1974)
The Men from P.I.G. and R.O.B.O.T. (1974)
The California Iceberg (1975) (with James E Barry)
The Lifeship (1976) (with Gordon R Dickson)
     aka Lifeboat
Skyfall (1976)
Mechanismo (1978)
Planet Story (1979)
The QEII Is Missing (1980)
Planet of No Return (1981)
The Jupiter Plague (1982)
Invasion: Earth (1982)
A Rebel in Time (1983)
Tales from the Planet Earth: A Novel with Nineteen Authors (1986) (with Lino Aldani, Brian Aldiss, Karl-Michael Armer, Jon Bing, Andre Carneiro, A Bertram Chandler, Ljuben Dilov, Tong Enzheng, Carlos Maria Federici, Sam J Lundwall, Joseph Nesvadba, Frederik Pohl, Spider Robinson, Tetsu Yano, Ye Yonglie and Janusz A Zajdel)
The Turing Option (1992) (with Marvin Minsky)

Pollution! (1971) (with C M Kornbluth and Clifford D Simak)

Bill, the Galactic Hero
1. Bill the Galactic Hero (1965)
2. The Planet of Robot Slaves (1989)
3. The Planet of the Bottled Brains (1990) (with Robert Sheckley)
4. The Planet of Tasteless Pleasure (1990) (with David Bischoff)
5. The Planet of the Zombie Vampires (1991) (with Jack C Haldeman, II)
6. The Planet of the Hippies from Hell (1991) (with David Bischoff)
     aka The Planet of Ten Thousand Bars
7. The Final Incoherent Adventure (1992) (with David Harris)

Nebula Award Stories (with Brian Aldiss)
Nebula Award Stories 2 (1966)

Analog (with Brian Aldiss)
Astounding Analog Reader (1973)

Best SF (with Brian Aldiss)
1. Best SF : 1967 (1968)
     aka The Year's Best Science Fiction 1
2. Best SF: 1968 (1969)
     aka The Year's Best Science Fiction 2
3. Best SF: 1969 (1969)
     aka The Year's Best Science Fiction 3
4. Best SF: 1970 (1971)
     aka The Year's Best Science Fiction 4
5. Best SF: 1971 (1972)
     aka The Year's Best Science Fiction 5
6. Best SF: 1972 (1973)
     aka The Year's Best Science Fiction 6
7. Best SF: 1973 (1974)
     aka The Year's Best Science Fiction 7
8. Best SF: 1974 (1974)
     aka The Year's Best Science Fiction 8
9. Best SF: 1975 (1976)
     aka The Year's Best Science Fiction 9

Apeman, Spaceman (1968) (with Leon E Stover)
Farewell, Fantastic Venus! (1968) (with Brian Aldiss)
Backdrop of Stars (1968)
Blast Off (1969)
Four for the Future (1969)
Worlds of Wonder: Sixteen Tales of Science Fiction (1969)
Nova 1 (1970)
Year 2000 (1970)
The Light Fantastic: Science Fiction Classics from the Mainstream (1971)
Nova 2 (1972)
Astounding: John W. Campbell Memorial Anthology (1973)
The John W Campbell Memorial Anthology (1973)
Nova 3 (1973)
     aka The Outdated Man
Nova 4 (1974)
Decade the 1940's (1975) (with Brian Aldiss)
Decade the 1950's (1976) (with Brian Aldiss)
Decade the 1960's (1977) (with Brian Aldiss)
There Won't Be War (1991) (with Bruce McAllister)

Great Balls of Fire (1977)
Spacecraft in Fact and Fiction (1979) (with Malcolm Edwards)

Great Science Fiction Adventures (1956)
The Fantastic Universe Omnibus (1960)
The Fantastic Universe Omnibus (1960)
The Best from Fantasy and Science Fiction 13th Series (1964)
The Unfriendly Future (1965)
The 7th Pan Book of Horror Stories (1966)
An ABC of Science Fiction (1966)
Analog 6 (1966)
Beyond the Curtain of Dark (1966)
Gods for Tomorrow (1967)
New Worlds of Fantasy (1967)
     aka Step Outside Your Mind
Science Fiction Horizons No. 1 (1968)
Four for the Future (1969)
The Freak Show (1970)
The John W Campbell Memorial Anthology (1973)
New Writings in SF 22 (1973)
Nova 3 (1973)
     aka The Outdated Man
The Penguin Science Fiction Omnibus (1973)
Final Stage (1974)
Antigrav: Cosmic Comedies by SF Masters (1975)
The Best Science Fiction Stories (1977)
Anticipations (1978)
After the Fall (1980)
The Golden Age of Science Fiction (1981)
Weekend Book of Science Fiction (1981)
Top Science Fiction (1984)
A Treasury of American Horror Stories (1985)
Time Wars (1986)
Space Wars (1988)
Dark Voices: The Best from the Pan Book of Horror Stories (1990)
The Oxford Book of Science Fiction Stories (1992)
Animal Brigade 3000 (1994)
Cyber-Killers (1997)
The Flying Sorcerers (1997)
Don't Open This Book! (1998)
The Young Oxford Book of Aliens (1998)
The Mammoth Book of Seriously Comic Fantasy (1999)

Harry Harrison (1989) by Gordon Benson and Phil Stephensen-Payne
Harry Harrison (1990) by Leon E Stover
Harry Harrison : An Annotated Bibliography (2002) by Paul Tomlinson