Eligibility Year:
1970
Novel
- Winner: Ringworld, Larry Niven (Ballantine)
- (tie): Tower of Glass, Robert Silverberg (Galaxy Apr,May,Jun 1970; Scribner's)
- (tie): The Year of the Quiet Sun, Wilson Tucker (Ace)
- And Chaos Died, Joanna Russ (Ace)
- (tie): Downward to the Earth, Robert Silverberg (Galaxy Nov,Dec 1969,Feb,Mar 1970; Science Fiction Book Club)
- (tie): Fourth Mansions, R. A. Lafferty (Ace)
- Tau Zero, Poul Anderson (Doubleday)
- “The Tactics of Mistake”, Gordon R. Dickson (Analog Oct,Nov,Dec 1970, Jan 1971)
- I Will Fear No Evil, Robert A. Heinlein (Galaxy Jul,Aug/Sep,Oct/Nov,Dec 1970; Putnam)
- “Star Light”, Hal Clement (Analog Jun,Jul,Aug,Sep 1970)
- Beastchild, Dean Koontz (Lancer)
- Deryni Rising, Katherine Kurtz (Ballantine)
- Chronocules, D. G. Compton (Ace)
- The Steel Crocodile, D. G. Compton (Ace)
- Nine Princes in Amber, Roger Zelazny (Doubleday)
- After Things Fell Apart, Ron Goulart (Ace)
Short Fiction
- Winner: “The Region Between”, Harlan Ellison (Galaxy Mar 1970; Five Fates)
- “The Snow Women”, Fritz Leiber (Fantastic Apr 1970)
- “Continued on Next Rock”, R. A. Lafferty (Orbit 7)
- “Beastchild”, Dean R. Koontz (Venture Aug 1970)
- “In the Queue”, Keith Laumer (Orbit 7)
- “Slow Sculpture”, Theodore Sturgeon (Galaxy Feb 1970)
- “Runesmith”, Harlan Ellison & Theodore Sturgeon (F&SF May 1970)
- “Brillo”, Ben Bova & Harlan Ellison (Analog Aug 1970)
- “The Asian Shore”, Thomas M. Disch (Orbit 6)
- (tie): “Dear Aunt Annie”, Gordon Eklund (Fantastic Apr 1970)
- (tie): “Entire and Perfect Chrysolite”, R. A. Lafferty (Orbit 6)
- (tie): “The Fatal Fulfillment”, Poul Anderson (F&SF Mar 1970; Five Fates)
- “The Throwbacks”, Robert Silverberg (Galaxy Jul 1970)
- “Ill Met in Lankhmar”, Fritz Leiber (F&SF Apr 1970)
Anthology/collection
- Winner: The Science Fiction Hall of Fame Volume 1, Robert Silverberg, ed. (Doubleday)
- Nine Hundred Grandmothers, R. A. Lafferty (Ace)
- Orbit 6, Damon Knight, ed. (Putnam)
- World's Best Science Fiction: 1970, Donald A. Wollheim & Terry Carr, eds. (Ace)
- Orbit 7, Damon Knight, ed. (Putnam)
- Quark/1, Samuel R. Delany & Marilyn Hacker, eds. (Paperback Library)
- Five Fates, Anonymous, ed. (Doubleday)
- The Last Hurrah of the Golden Horde, Norman Spinrad (Avon)
- Alchemy and Academe, Anne McCaffrey, ed. (Doubleday)
- Alpha One, Robert Silverberg, ed. (Ballantine)
- The Reluctant Shaman, L. Sprague de Camp (Pyramid)
- Swords Against Death, Fritz Leiber (Ace)
- Great Short Novels of Science Fiction, Robert Silverberg, ed. (Ballantine)
- Orbit 8, Damon Knight, ed. (Putnam)
- Nova 1, Harry Harrison, ed. (Delacorte)
Magazine
- Winner: F&SF
- Analog
- Galaxy
- Amazing Stories
- Fantastic
- If
- Vision of Tomorrow
- Worlds of Fantasy
Fanzine
- Winner: Locus
- Science Fiction Review
- Outworlds
- Energumen
- Speculation
- Yandro
- Warhoon
- SF Commentary
- Luna
- Focal Point
- Granfalloon
- WSFA Journal
- Riverside Quarterly
- Amra
- Tolkien Journal
- Egoboo
Single Fanzine Issue
- Winner: Locus #70
- Outworlds #4
- Warhoon #27
- Focal Point #12.5
- (tie): Science Fiction Review #39
- (tie): Yandro #200
- Energumen #2
- (tie): Energumen #4
- (tie): Granfalloon #9
- Science Fiction Review #41
- Energumen #3
- The Essence #2
- (tie): Anomaly 2
- (tie): SF Commentary #17
- Locus #66