1970 Hugo Winners
Novel - The Left Hand of Darkness by Ursula K. Le Guin
Novella - "Ship of Shadows" by Fritz Leiber
Short Story - "Time Considered as a Helix of Semi-Precious Stones" by Samuel R. Delany
Professional Artist - Frank Kelly Freas
Dramatic Presentation - News coverage of Apollo XI
Professional Magazine - The Magazine of Fantasy and Science Fiction
Fanzine - Science Fiction Review
Fan Writer - Bob Tucker
Fan Artist - Tim Kirk
1971 Hugo Winners
Novel - Ringworld by Larry Niven
Novella - "Ill Met in Lankhmar" by Fritz Leiber
Short Story - "Slow Sculpture" by Theodore Sturgeon
Professional Artist - Leo and Diane Dillon
Professional Magazine - The Magazine of Fantasy and Science Fiction
Fanzine - Locus
Fan Writer - Richard E. Geis
Fan Artist - Alicia Austin
1972 Hugo Winners
Novel - To Your Scattered Bodies Go by Philip José Farmer
Novella - "The Queen of Air and Darkness" by Poul Anderson
Short Story - "Inconstant Moon" by Larry Niven
Professional Artist - Frank Kelly Freas
Dramatic Presentation - A Clockwork Orange
Professional Magazine - The Magazine of Fantasy and Science Fiction
Amateur Magazine - Locus
Fan Writer - Harry Warner, Jr.
Fan Artist - Tim Kirk
1973 Hugo Winners
Novel - The Gods Themselves by Isaac Asimov
Novella - "The Word for World Is Forest" by Ursula K. Le Guin
Novelette - "Goat Song" by Poul Anderson
Short Story - Tie between "Eurema's Dam" by R. A Lafferty and "The Meeting" by Frederik Pohl and C. M. Kornbluth
Professional Artist - Frank Kelly Freas
Professional Editor - Ben Bova
Dramatic Presentation - Slaughterhouse-Five
Amateur Magazine - Energumen
Fan Writer - Terry Carr
Fan Artist - Tim Kirk
1974 Hugo Winners
Novel - Rendezvous with Rama by Arthur C. Clarke
Novella - "The Girl Who Was Plugged In" by James Tiptree, Jr.
Novelette - "The Deathbird" by Harlan Ellison
Short Story - "The Ones Who Walk Away from Omelas" by Ursula K. Le Guin
Professional Artist - Frank Kelly Freas
Professional Editor - Ben Bova
Dramatic Presentation - Sleeper
Amateur Magazine - Tie between Algol and The Alien Critic
Fan Writer - Susan Wood
Fan Artist - Tim Kirk
1975 Hugo Winners
Novel - The Dispossessed by Ursula K. Le Guin
Novella - "A Song for Lya" by George R. R. Martin
Novelette - "Adrift Just Off the Islets of Langerhans: Latitude 38° 54' N, Longitude 77° 00' 13" W"" by Harlan Ellison
Short Story - "The Hole Man" by Larry Niven
Professional Artist - Frank Kelly Freas
Dramatic Presentation - Young Frankenstein
Professional Editor - Ben Bova
Amateur Magazine - The Alien Critic
Fan Writer - Richard E. Geis
Fan Artist - Bill Rotsler
1976 Hugo Winners
Novel - The Forever War by Joe Haldeman
Novella - "Home Is the Hangman" by Roger Zelazny
Novelette - "The Borderland of Sol" by Larry Niven
Short Story - "Catch That Zeppelin!" by Fritz Leiber
Professional Artist - Frank Kelly Freas
Dramatic Presentation - A Boy and His Dog
Professional Editor - Ben Bova
Fanzine - Locus
Fan Writer - Richard E. Geis
Fan Artist - Tim Kirk
1977 Hugo Winners
Novel - Where Late the Sweet Birds Sang by Kate Wilhelm
Novella - Tie between "By Any Other Name" by Spider Robinson and "Houston, Houston, Do You Read?" by James Tiptree, Jr.
Novelette - "The Bicentennial Man" by Isaac Asimov
Short Story - "Tricentennial" by Joe Haldeman
Professional Artist - Rick Sternbach
Professional Editor - Ben Bova
Amateur Magazine - Science Fiction Review
Fan Writer - Tie between Susan Wood and Richard E. Geis
Fan Artist - Phil Foglio
1978 Hugo Winners
Novel - Gateway by Frederik Pohl
Novella - "Stardance" by Spider and Jeanne Robinson
Novelette - "Eyes of Amber" by Joan D. Vinge
Short Story - "Jeffty Is Five" by Harlan Ellison
Professional Artist - Rick Sternbach
Professional Editor - George H. Scithers
Dramatic Presentation - Star Wars
Amateur Magazine - Locus
Fan Writer - Richard E. Geis
Fan Artist - Phil Foglio
1979 Hugo Winner
Novel - Dreamsnake by Vonda McIntyre
Novella - "The Persistence of Vision" by John Varley
Novelette - "Hunter's Moon" by Poul Anderson
Short Story - "Cassandra" by C. J. Cherryh
Professional Artist - Vincent DiFate
Dramatic Presentation - Superman
Professional Editor - Ben Bova
Fanzine - Science Fiction Review
Fan Writer - Bob Shaw
Fan Artist - Bill Rotsler