The three most prestigious and best known awards in science fiction are:

• the Hugos for best novel, novella, novelette, short story; also retrospective awards
• the Nebulas for best novel, novella, novelette, and short story
• the John W. Campbell Memorial Award for best novel

Other important awards include, in order of their longevity:

• the British Science Fiction Association Awards for best novel and short fiction
• the Locus Awards for sf novel, fantasy novel, horror novel, first novel, young adult book, novella, novelette, and short story as well as all-time best sf and fantasy novels
• the World Fantasy Awards for best novel, novella, and short story
• the Philip K. Dick Award for best paperback original
• the Theodore Sturgeon Memorial Award for best short story
• the Bram Stoker Awards (the horror equivalent of the Nebulas) for novel, first novel, novella, novelette, short fiction, illustrated narrative, and fiction for younger readers
• the James Tiptree, Jr. Award for science fiction or fantasy that expands ideas about the roles of women and men
• the Sidewise Award for Alternate History for long form, short form, and special achievement
• the Andre Norton Award for best young adult science fiction or fantasy