2005
Novel: Camouflage by Joe Haldeman
Novella: "Magic for Beginners" by Kelly Link
Novelette: "The Faery Handbag" by Kelly Link
Short Story: "I Live With You" by Carol Emshwiller
Script: Serenity by Joss Whedon

2004
Novel: Paladin of Souls by Lois McMaster Bujold
Novella: "The Green Leopard Plague" by Walter Jon Williams
Novelette: "Basement Magic" by Ellen Klages
Short Story: "Coming to Terms" by Eileen Gunn
Script: Lord of the Rings: Return of the King by Frances Walsh,
Phillipa Boyens, Peter Jackson

2003
Novel: Speed of Dark by Elizabeth Moon
Novella: "Coraline" by Neil Gaiman
Novelette: "The Empire of Ice Cream" by Jeffrey Ford
Short Story: "What I Didn't See" by Karen Joy Fowler
Script: Lord of the Rings: The Two Towers by Frances Walsh, Phillipa
Boyens, Stephen Sinclair, Peter Jackson

2002
Novel: American Gods by Neil Gaiman
Novella: "Bronte's Egg" by Richard Chwedyk
Novelettes: "Hell is the Absence of God" by Ted Chiang
Short Story: "Creature" by Carol Emshwiller
Script: Lord of the Rings: The Fellowship of the Ring by Frances Walsh, Phillipa Boyens and Peter Jackson
Grand Master: Ursula K. Le Guin
Author Emeritus: Katherine MacLean

2001
Novel: The Quantum Rose by Catherine Asaro
Novella: "The Ultimate Earth" by Jack Williamson
Novelettes: "Louise's Ghost" by Kelly Link
Short Story: "The Cure for Everything" by Severna Park
Script: Crouching Tiger, Hidden Dragon by James Schamus, Kuo Jung Tsai and Hui-Ling Wang
President's Award: Betty Ballantine

2000
Novel: Darwin's Radio by Greg Bear
Novella: "Goddesses" by Linda Nagata
Novelette: "Daddy's World" by Walter Jon Williams
Short Story: "macs" by Terry Bisson
Script: Galaxy Quest by Robert Gordon, David Howard

1999
Novel: Parable of the Talents by Octavia E. Butler
Novella: "Story of Your Life" by Ted Chiang
Novelette: "Mars is No Place for Children" by Mary A. Turzillo
Short Story: "The Cost of Doing Business" by Leslie What
Script: The Sixth Sense by M. Night Shyamalan

1998
Novel: Forever Peace by Joe Haldeman
Novella: "Reading the Bones" by Sheila Finch
Novelette: "Lost Girls" by Jane Yolen
Short Story: "Thirteen Ways to Water" by Bruce Holland Rogers

1997
Novel: The Moon and the Sun by Vonda N. McIntyre
Novella: "Abandon in Place" by Jerry Oltion
Novelette: "Flowers of Aulit Prison" by Nancy Kress
Short Story: "Sister Emily's Lightship" by Jane Yolen

1996
Novel: Slow River by Nicola Griffith
Novella: "Da Vinci Rising" by Jack Dann
Novelette: "Lifeboat on a Burning Sea" by Bruce Holland Rogers
Short Story: "A Birthday" by Esther M. Friesner

1995
Novel: The Terminal Experiment by Robert J. Sawyer
Novella: "Last Summer at Mars Hill" by Elizabeth Hand
Novelette: "Solitude" by Ursula K. Le Guin
Short Story: "Death and the Librarian" by Esther M. Friesner

1994
Novel: Moving Mars by Greg Bear
Novella: "Seven Views of Olduvai Gorge" by Mike Resnick
Novelette: "The Martian Child" by David Gerrold
Short Story: "A Defense of the Social Contracts" by Martha Soukup

1993
Novel: Red Mars by Kim Stanley Robinson
Novella: "The Night We Buried Road Dog" by Jack Cady
Novelette: "Georgia on My Mind" by Charles Sheffield
Short Story: "Graves" by Joe Haldeman

1992
Novel: Doomsday Book by Connie Willis
Novella: "City Of Truth" by James Morrow
Novelette: "Danny Goes to Mars" by Pamela Sargent
Short Story: "Even the Queen" by Connie Willis

1991
Novel: Stations of the Tide by Michael Swanwick
Novella: "Beggars in Spain" by Nancy Kress
Novelette: "Guide Dog" by Mike Conner
Short Story: "Ma Qui" by Alan Brennert

1990
Novel: Tehanu: The Last Book of Earthsea by Ursula K. Le Guin
Novella: "The Hemingway Hoax" by Joe Haldeman
Novelette: "Tower of Babylon" by Ted Chiang
Short Story: "Bears Discover Fire" by Terry Bisson

1989
Novel: The Healer's War by Elizabeth Ann Scarborough
Novella: "The Mountains of Mourning" by Lois McMaster Bujold
Novelette: "At the Rialto" by Connie Willis
Short Story: "Ripples in the Dirac Sea" by Geoffrey A. Landis

1988
Novel: Falling Free by Lois McMaster Bujold
Novella: "The Last of the Winnebagos" by Connie Willis
Novelette: "Schrödinger's Kitten" by George Alec Effinger
Short Story: "Bible Stories for Adults, No. 17: The Deluge" by James Morrow

1987
Novel: The Falling Woman by Pat Murphy
Novella: "The Blind Geometer" by Kim Stanley Robinson
Novelette: "Rachel in Love" by Pat Murphy
Short Story: "Forever Yours, Anna" by Kate Wilhelm

1986
Novel: Speaker for the Dead by Orson Scott Card
Novella: "R&R" by Lucius Shepard
Novelette: "The Girl Who Fell Into the Sky" by Kate Wilhelm
Short Story: "Tangents" by Greg Bear

1985
Novel: Ender's Game by Orson Scott Card
Novella: "Sailing to Byzantium" by Robert Silverberg
Novelette: "Portraits of His Children" by George R. R. Martin
Short Story: "Out of All Them Bright Stars" by Nancy Kress

1984
Novel: Neuromancer by William Gibson
Novella: "Press Enter []" by John Varley
Novelette: "Blood Child" by Octavia Butler
Short Story: "Morning Child" by Gardner Dozois

1983
Novel: Startide Rising by David Brin
Novella: "Hardfought" by Greg Bear
Novelette: "Blood Music" by Greg Bear
Short Story: "The Peacemaker" by Gardner Dozois

1982
Novel: No Enemy But Time by Michael Bishop
Novella: "Another Orphan" by John Kessel
Novelette: "Fire Watch" by Connie Willis
Short Story: "A Letter From the Clearys" by Connie Willis

1981
Novel: The Claw of the Conciliator by Gene Wolfe
Novella: "The Saturn Game" by Poul Anderson
Novelette: "The Quickening" by Michael Bishop
Short Story: "The Bone Flute" by Lisa Tuttle (declined by author)

1980
Novel: Timescape by Gregory Benford
Novella: "Unicorn Tapestry" by Suzy McKee Charnas
Novelette: "The Ugly Chickens" by Howard Waldrop
Short Story: "Grotto of the Dancing Deer" by Clifford D. Simak

1979
Novel: The Fountains of Paradise by Arthur C. Clarke
Novella: "Enemy Mine" by Barry B. Longyear
Novelette: "Sandkings" by George R. R. Martin
Short Story: "GiANTS" by Edward Bryant

1978
Novel: Dreamsnake by Vonda N. McIntyre
Novella: "The Persistence of Vision" by John Varley
Novelette: "A Glow of Candles, A Unicorn's Eye" by C. L. Grant
Short Story: "Stone" by Edward Bryant

1977
Novel: Gateway by Frederik Pohl
Novella: "Stardance" by Spider & Jeanne Robinson
Novelette: "The Screwfly Solution" by Racoona Sheldon
Short Story: "Jeffty Is Five" by Harlan Ellison

1976
Novel: Man Plus by Frederik Pohl
Novella: "Houston, Houston, Do You Read?" by James Tiptree, Jr.
Novelette: "The Bicentennial Man" by Isaac Asimov
Short Story: "A Crowd of Shadows" by C. L. Grant

1975
Novel: The Forever War by Joe Haldeman
Novella: "Home is the Hangman" by Roger Zelazny
Novelette: "San Diego Lightfoot Sue" by Tom Reamy
Short Story: "Catch That Zeppelin" by Fritz Leiber
Dramatic Presentation: Young Frankenstein by Mel Brooks & Gene Wilder
Special Plaque: George Pal, for his film work

1974
Novel: The Dispossessed by Ursula K. Le Guin
Novella: "Born With the Dead" by Robert Silverberg
Novelette: "If the Stars Are Gods" by Gordon Eklund & Gregory Benford
Short Story: "The Day Before the Revolution" by Ursula K. Le Guin
Dramatic Presentation: Sleeper by Woody Allen

1973
Novel: Rendezvous With Rama by Arthur C. Clarke
Novella: "The Death of Doctor Island" by Gene Wolfe
Novelette: "Of Mist, and Grass, and Sand" by Vonda N. McIntyre
Short Story: "Love Is the Plan, the Plan is Death" by James Tiptree, Jr.
Dramatic Presentation: Soylent Green

1972
Novel: The Gods Themselves by Isaac Asimov
Novella: "A Meeting With Medusa" by Arthur C. Clarke
Novelette: "Goat Song" by Poul Anderson
Short Story: "When It Changed" by Joanna Russ

1971
Novel: A Time of Changes by Robert Silverberg
Novella: "The Missing Man" by Katherine MacLean
Novelette: "The Queen of Air and Darkness" by Poul Anderson
Short Story: "Good News from the Vatican" by Robert Silverberg

1970
Novel: Ringworld by Larry Niven
Novella: "Ill Met in Lankhmar" by Fritz Leiber
Novelette: "Slow Sculpture" by Theodore Sturgeon
Short Story: No Award

1969
Novel: The Left Hand of Darkness by Ursula K. Le Guin
Novella: "A Boy and His Dog" by Harlan Ellison
Novelette: "Time Considered as a Helix of Semi-Precious Stones" by Samuel R. Delany
Short Story: "Passengers" by Robert Silverberg

1968
Novel: Rite of Passage by Alexei Panshin
Novella: "Dragonrider" by Anne McCaffrey
Novelette: "Mother to the World" by Richard Wilson
Short Story: "The Planners" by Kate Wilhelm

1967
Novel: The Einstein Intersection by Samuel R. Delany
Novella: "Behold the Man" by Michael Moorcock
Novelette: "Gonna Roll the Bones" by Fritz Leiber
Short Story: "Aye, and Gomorrah" by Samuel R. Delany

1966
Novel: Babel-17 by Samuel R. Delany and Flowers For Algernon by Daniel Keyes (tie)
Novella: "The Last Castle" by Jack Vance
Novelette: "Call Him Lord" by Gordon R. Dickson
Short Story: "The Secret Place" by Richard McKenna

1965
Novel: Dune by Frank Herbert
Novella: "He Who Shapes" by Roger Zelazny and "The Saliva Tree" by Brian Aldiss (tie)
Novelette: "The Doors of His Face, the Lamps of His Mouth" by Roger Zelazny
Short Story: "'Repent, Harlequin!' Said the Ticktockman" by Harlan Ellison