| Hagelin, Suzanne | Eclipse: Worth the Cost | Novel (40,000 words and up), Young Adult | Near Future, Science Fiction |
| Harrow, Alix | The Everlasting | Novel (40,000 words and up) | Alt History, Fantasy, Romantasy, Speculative |
| Hatfield, Joanne | Ghost of Nostalgia by Hatfield, Joanne | Novel (40,000 words and up) | Fantasy, Second-world Fantasy |
| Hess, Al | Wasteland Heart by Hess, Al | Novel (40,000 words and up) | Science Fiction, Weird |
| Hines, Jim C. | Kitemaster by Hines, Jim C. | Novel (40,000 words and up) | Fantasy, Second-world Fantasy |
| Hines, Jim C. | Slayers of Old | Novel (40,000 words and up) | Fantasy, Humorous, Urban Fantasy |
| Hixon, Spencer | Fate & Fortune | Indie, Novel (40,000 words and up), Young Adult | Fantasy, Urban Fantasy |
| Ho, Elaine | Cry, Voidbringer | Novel (40,000 words and up) | Fantasy, Speculative |
| Ikenberry, Kevin | Smoke and Thunder | Novel (40,000 words and up) | Military SFF, Science Fiction |
| Isaacs, E.J. | A New Beginning by Isaacs, E.J. | Indie, Novel (40,000 words and up) | Science Fiction, Space Opera |
| Kaplan, A. L. | Startouched by Kaplan, A. L. | Novel (40,000 words and up), Young Adult | Near Future, Science Fiction |
| Kepler, Dire | X-CURSE | Middle Grade, Novel (40,000 words and up), Young Adult | Alt History, Near Future, Science Fiction |
| Kilex, Sebastian | Erased | Novel (40,000 words and up), Young Adult | Science Fiction, Speculative |
| King, E E | Gods and Monsters | Novel (40,000 words and up) | Fantasy, Speculative, Urban Fantasy |
| Kingfisher, T | Hemlock & Silver | Novel (40,000 words and up) | Fantasy |
| Kingsley, Alex | Relic of Haven by Kingsley, Alex | Indie, Novel (40,000 words and up) | Environmental / Cli-Fi, Fantasy, Humorous, Science Fiction, Speculative, Weird |
| Knightly, Rae | GRIMSTAR (The Lost Space Treasure Series, Book 4) | Indie, Middle Grade, Novel (40,000 words and up) | Science Fiction, Space Opera |
| Knightly, Rae | DOOMSTAR (The Lost Space Treasure Series, Book 5) | Indie, Middle Grade, Novel (40,000 words and up) | Science Fiction, Space Opera |
| Knudsen, Michelle | Into the Wild Magic by Knudsen, Michelle | Middle Grade, Novel (40,000 words and up), Young Adult | Fantasy, Second-world Fantasy |
| Koja, Kathe | Dark Matter by Koja, Kathe | Novel (40,000 words and up) | Cyberpunk, Near Future, Science Fiction, Speculative |
