Der Ditmar Award ist ein australischer Literaturpreis, der seit 1969 für Werke aus den Bereichen Science-Fiction, Fantasy und Horror verliehen wird. Er gilt als der renommierteste australische Preis in diesen Genres. Er wird jährlich bei der Australian National Science Fiction Convention (NatCon) verliehen.

Der Name des gelegentlich auch Australian Science Fiction Achievement Award genannten Preises geht auf den SF-Fan und -Künstler Dick Jenssen zurück, der 1982 erklärte, er würde den Preis finanzieren, wenn er „Ditmar Award“ genannt würde. Auf die Frage, was denn ein „Ditmar“ sei, soll er geantwortet haben, das stünde für „Digital Integrating and Tabulating Mechanism for the Advancement of Research“. Tatsächlich ist Ditmar einer der Vornamen von Jenssen.Ditmar Awards in Fancyclopedia 3, abgerufen am 29. März 2019.

Seit 1976 wird für Besprechungen und kritische Arbeiten der William Atheling Jr. Award verliehen.

Preisträger und Nominierungen 1969: Eighth Australian Science Fiction Convention, Melbourne

Best Australian Science Fiction of any length, or collection Pacific Book Of Australian SF, John Baxter False Fatherland, A. Bertram Chandler Final Flower, Stephen Cook

Best International Science Fiction of any length, or collection An Age, Brian Aldiss Camp Concentration, Thomas M. Disch The Ring of Ritornel, Charles Harness

Best Contemporary Writer of Science Fiction Brian Aldiss R.A. Lafferty Samuel R. Delany Roger Zelazny

Best Australian Amateur Science Fiction Publication or Fanzine Australian Science Fiction Review, John Bangsund The Mentor, Ronald L Clarke Rataplan, Leigh Edmonds

1970: Ninth Australian Science Fiction Convention, Melbourne

Best Australian Science Fiction Dancing Gerontius, Lee Harding Anchor Man, Jack Wodhams Split Personality, Jack Wodhams The Kinsolving's Planet Irregulars, A. Bertram Chandler

Best International Publication Amazing Stories Vision of Tomorrow

Best International Fiction The Left Hand of Darkness, Ursula K. Le Guin Cosmicomics, Italo Calvino Best Australian Fanzine S.F. Commentary, Bruce Gillespie The Journal of Omphalistic Epistemology, John Foyster 1971: Tenth Australian Science Fiction Convention, Melbourne

Best Australian SF After Ragnarok, Robert Bowden The Bitter Pill, A. Bertram Chandler Squat, David Rome

Best International Fiction

(nicht vergeben)

Time and the Hunter, Italo Calvino The Region Between, Harlan Ellison Tower Of Glass, Robert Silverberg

Best Australian Fanzine S.F. Commentary, Bruce Gillespie The Somerset Gazette, Noel Kerr The New Forerunner, Gary Mason

Special Awards SF in the Cinema, John Baxter Vision of Tomorrow, Ron Graham 1972: Syncon 2, Sydney

Best Australian Fiction What You Know, A. Bertram Chandler The Fallen Spaceman, Lee Harding The Immortal, Olaf Ruhen The Man Of Slow Feeling, Michael Wilding The Authentic Touch, Jack Wodhams

Best International Fiction To Your Scattered Bodies Go, Philip José Farmer Continued On the Next Rock, R.A. Lafferty The Lathe Of Heaven, Ursula K. Le Guin Ringworld, Larry Niven A Time Of Changes, Robert Silverberg

Best Australian Fanzine Scythrop, John Bangsund The Mentor, Ron L. Clarke The Fanarchist, David Grigg Chao, John Alderson S.F. Commentary, Bruce Gillespie 1973: Advention 2, Adelaide

Best Australian Fiction The Hard Way Up, A. Bertram Chandler Let it Ring, John Ossian (John Foyster) Gone Fishing, David Rome Budnip, Jack Wodhams

Best International Fiction The Gods Themselves, Isaac Asimov The Gorgon Festival, John Boyd The IQ Merchant, John Boyd Dying Inside, Robert Silverberg

Best Dramatic Presentation Aussiefan A Clockwork Orange Slaughterhouse Five Tales From The Crypt

Best Australian Fanzine Chao, John Alderson Gegenschein, Eric Lindsay Rataplan, Leigh Edmonds S.F. Commentary, Bruce Gillespie 1974: Ozcon, Melbourne (nicht vergeben)

1975: Syncon '75, Sydney

Best Australian SF The Bitter Pill, A. Bertram Chandler The Soft Kill, Colin Free The Ark of James Carlyle, Cherry Wilder

Best International Fiction Protector, Larry Niven The Dispossessed, Ursula K. Le Guin Frankenstein Unbound, Brian Aldiss

Best Australian Fanzine Osiris, Del & Dennis Stocks Forerunner, Sue Clarke Fanew Sletter, Leigh Edmonds Chao, John Alderson Gegenschein, Eric Lindsay

1976: Bofcon, Melbourne

Best Australian Fiction The Big Black Mark, A. Bertram Chandler Way Out West, Cherry Wilder The Frozen Sky, Lee Harding (Nominierung zurückgezogen, da 1976 erschienen)

Best International Fiction The Indian Giver, Alfred Bester The Shockwave Rider, John Brunner The Forever War, Joe Haldeman Inferno, Larry Niven & Jerry Pournelle Down to a Sunless Sea, Cordwainer Smith

Best Australian Fanzine Chao, John Alderson Fanew Sletter, Leigh Edmonds Mad Dan's Review, Marc Ortlieb Osiris, Del & Dennis Stocks Interstellar Ramjet Scoop, Bill Wright

William Atheling Jr Award Algis Budrys, Foundation & Asimov James Gunn, Alternative Worlds David Ketterer, New Worlds For Old George Turner, Paradigm and Pattern; Form and Meaning in The Dispossessed George Turner, Philip Dick by 1975

1977: A-Con 7, Adelaide

Best Australian Science Fiction The Ins and Outs of the Hadhya City State, Phillipa Maddern Kelly Country, A. Bertram Chandler Future Sanctuary, Lee Harding Walkers on the Sky, David Lake Best International Fiction A World Out of Time, Larry Niven The Space Machine, Chris Priest The Hand of Oberon, Roger Zelazny Piper at the Gates of Dawn, Richard Cowper

Best Australian Fanzine S.F. Commentary, Bruce Gillespie Mad Dan's Review, Marc Ortlieb Enigma, Van Ikin South of Harad, East of Rhun, Jon Noble

William Atheling Jr Award George Turner, Theme as an Element of Fiction George Turner, The Jonah Kit George Turner & Peter Nicholls, Plumbers of the Cosmos

Special committee award The Ins and Outs of the Hadhya City State, Phillipa Maddern 1978: Unicon IV, Melbourne

Australian Science Fiction, Best Novel The Right Hand of Dextra, David Lake The Wildings of Westron, David Lake The Weeping Sky, Lee Harding The Luck of Brins Five, Cherry Wilder Australian Science Fiction, Best Short Fiction Albert's Bellyful, Francis Payne (Yggdrasil, Feb '77) Ignorant of Magic, Phillipa C. Maddern (View From The Edge) The Two Body Problem, Bruce Barnes (View From The Edge) The Long Fall, A. Bertram Chandler (Amazing, Juli '77)

Best International Fiction In the Hall Of the Martian Kings, John Varley, F&SF, Feb '77 The Silmarillion, J. R. R. Tolkien (Allen & Unwin) Our Lady Of Darkness, (aka The Pale Brown Thing) Fritz Leiber, (Berkeley Putnam/F&SF, Jan Februar 77) A Dream of Wessex, Chris Priest (Faber) The House of Compassionate Sharers, Michael Bishop (Cosmos No 1) The Silver in the Tree, Susan Cooper (Chatto & Windus) Gateway, Frederik Pohl (Gollancz or Ballantine)

Best Amateur Australian Publication (Fanzine) Yggdrasil, Dennis Callegari & Alan Wilson Enigma, Van Ikin Minardor, Marc Ortlieb Fanew Sletter, Leigh Edmonds Epsilon Eridani Express, Neville J. Angove

William Atheling Jr Award George Turner, The Martial Art of SF Criticism, Yggdrasil, Februar, Mai & August 1977 Andrew Whitmore, The Novels of D.G. Compton, SF Commentary, No 52. Robert Scholes & Eric S. Rabkin, Science Fiction: History Science Vision, O.U.P George Turner, The Silverberg Phenomenon, SF Commentary, No 51 Van Ikin, Rezension von Going

1979: Syncon '79, Sydney

Best Australian Fiction To Keep The Ship, A. Bertram Chandler (DAW) Beloved Son, George Turner (Faber) Play Little Victims, Kenneth Cook (Pergamon Press) Pie Row Joe, Kevin McKay, Rooms of Paradise (Quartet)

Best International Fiction The Far Call, Gordon R. Dickson (Quantum) Dreamsnake, Vonda McIntyre (Houghton & Mifflin) Stardance II, Spider und Jeanne Robinson, Analog, Sept to November 1978 The Persistence of Vision, John Varley, F&SF, März 1978 The White Dragon, Anne McCaffrey Best Australian Fanzine Forerunner, Jack R. Herman Yggdrasil, Dennis Callegari & Alan Wilson Scytale, Peter Toluzzi The Epsilon Eridani Express, Neville J. Angove Chunder!, John Foyster Best Australian Fanwriter Leanne Frahm John Bangsund Marc Ortlieb Anthony Peacy Eric Lindsay John Foyster

William Atheling Jr Award Susan Wood, Women and Science Fiction, Algol 33, 1978 John Bangsund, Parergon Papers 10, ANZAPA, Oktober 1978 John McPharlin, On The Ebb Tide of the New Wave, Auto Delerium, März 1978 Lloyd Biggle, jr., The Morasses of Academe Revisited, Analog, September 1978

1980: Swancon 5, Perth

Australian Fiction Moon in the Ground, Keith Antill Displaced Person, Lee Harding Australian Gnomes, Robert Ingpen One Clay Foot, Jack Wodhams

Best International Fiction The Hitch-Hiker's Guide to the Galaxy, Douglas Adams Castle Roogna, Piers Anthony The Flight of Dragons, Peter Dickinson Dragondrums, Anne McCaffrey Titan, John Varley

Best Australian Fanzine Bionic Rabbit, Damian Brennan The Wasffan, Roy Ferguson Chunder, John Foyster S.F. Commentary, Bruce Gillespie Forerunner, Jack Herman

Best Australian Fanwriter Damian Brennan Roy Ferguson Leanne Frahm Jack R. Herman Marc Ortlieb

Australian Fantasy/SF Artist Bevan Casey Chris Johnston Rob McGough John Packer Marilyn Pride Jane Taubman

William Atheling Jr Award Terry Dowling, The Art of Xenography, Science Fiction 3 Bruce Gillespie, The Man Who Filled the Void & By Our Fruits, S.F. Commentary 55/56 Jack R. Herman, Paradox as Paradigm: A Review of The Chronicles of Thomas Covenant the Unbeliever, Forerunner, Mai George Turner, Delany: A Victim of the Great Applause, Yggdrasil 3/79

1981: Advention '81, Adelaide

Best Australian Novel The Dreaming Dragons, Damien Broderick Breathing Space Only, Wynne Whiteford Looking for Blucher, Jack Wodhams The Fourth Hemisphere, David Lake

Best Australian Short Fiction Deus Ex Corporus, Leanne Frahm The Pastseer, Phillipa Maddern Passage to Earth, Leanne Frahm Horg, Jay Hoffman

Best International Fiction Mockingbird, Walter Tevis The Snow Queen, Joan D. Vinge Timescape, Gregory Benford The Wounded Land, Stephen R. Donaldson

Best Australian Fanzine Australian Science Fiction News, Mervyn R. Binns Q36, Marc Ortlieb Chunder, John Foyster S.F. Commentary, Bruce Gillespie

Best Australian Fanwriter Leigh Edmonds Leanne Frahm David Grigg Marc Ortlieb Best Australian SF or Fantasy Artist John Packer Marilyn Pride Jane Taubman Julie Vaux

William Atheling Jr Award Algis Budrys, Charting Paradise Christopher Priest, Outside the Whale John Sladek, Four Reasons for Reading Thomas M. Disch George Turner, Frederik Pohl as a Creator of Future Societies, und Samuel Delany: Victim of Great Applause

1982: Tschaicon, Melbourne (Tschaicon war die erste und einzige Australasian Science Fiction Convention, dementsprechend erscheint in den Kategorien durchgängig Australasian an Stelle von Australian)

Best Long Australasian Science Fiction or Fantasy The Anarch Lords, A. Bertram Chandler Bard, Keith Taylor Behind the Wind, Patricia Wrightson City of Women, David Ireland The Man Who Loved Morlocks, David Lake Best Short Australasian Science Fiction or Fantasy Armstrong, Jack Wodhams Tales of Mirric, Elizabeth Travers Where Silence Rules, Keith Taylor Best International Fiction The Affirmation, Chris Priest The Claw of the Conciliator, Gene Wolfe Radix, A. A. Attanasio The Sirian Experiments, Doris Lessing

Best Australasian Fanzine Australian SF News, Mervyn R. Binns Q36, Marc Ortlieb S.F. Commentary, Bruce Gillespie Thyme, Andrew Brown und Irwin Hirsh Weberwoman's Wrevenge, Jean Weber

Best Australasian Fanwriter Leigh Edmonds Judith Hanna Eric B. Lindsay Marc Ortlieb Best Australasian SF or Fantasy Artist Steph Campbell Chris Johnston John Packer Marilyn Pride William Atheling Jr Award