| Mancera, David; Louzon, Monica | "Through the Crimson Forest" | Indie, Short Story (up to 7,500 words), Work in Translation | Environmental / Cli-Fi, Fantasy, Science Fiction, Speculative |
| Mangan, Amelia | “Death Valley ’71” by Mangan, Amelia | Short Story (up to 7,500 words) | Horror, Speculative, Weird |
| Marin, H. | Shelter in Place | Flash (up to 1,500 words) | Environmental / Cli-Fi, Science Fiction, Speculative |
| McCarthy, J. A. W. | “Severed Blessings” by McCarthy, J. A. W. | Short Story (up to 7,500 words) | Fantasy, Horror, Speculative |
| McCarthy, J. A. W. | “The Body is a Cage Opened Only by Fire” by McCarthy, J. A. W. | Short Story (up to 7,500 words) | Fantasy, Horror, Speculative |
| McDermott, Will | “Fission Point” by McDermott, Will | Novelette (between 7,500 and 17,500 words) | Alt History, Speculative |
| Miller, Devin | "the trick of the necromancer's womb" | Poetry | Horror, Speculative |
| Mohamed, Premee | One Message Remains | Anthology, Novella (between 17,500 and 40,000 words) | Fantasy, Speculative, Weird |
| Montroy, Michael Yuya | “Blight” by Montroy, Michael Yuya | Short Story (up to 7,500 words) | Environmental / Cli-Fi, Fantasy, Near Future, Speculative |
| Morris, Stephanie Malia | “The Island with the Animals” by Morris, Stephanie Malia | Short Story (up to 7,500 words) | Near Future, Speculative |
| Morrison, Ronald | The Imperfect Deception | Novel (40,000 words and up) | Near Future, Science Fiction, Speculative |
| Multiple Authors | Combat Monsters: Untold Tales of World War II by Multiple Authors | Anthology | Alt History, Fantasy, Horror, Military SFF, Science Fiction, Speculative, Weird |
| Multiple Authors | Acid Box | Comic Issue / Issue Series, Graphic Novel | Fantasy, Speculative |
| Multiple Authors | Storyteller: A Tanith Lee Tribute Anthology | Anthology | Environmental / Cli-Fi, Fantasy, Horror, Humorous, Near Future, Romantasy, Science Fiction, Second-world Fantasy, Space Opera, Speculative, Weird |
| Multiple Authors | Storyteller: A Tanith Lee Tribute Anthology by Multiple Authors | Anthology | Environmental / Cli-Fi, Fantasy, Horror, Humorous, Near Future, Romantasy, Science Fiction, Second-world Fantasy, Speculative, Weird |
| Multiple Authors | Bright Green Futures | Anthology | Environmental / Cli-Fi, Science Fiction, Speculative |
| Multiple Authors | Twisting, Turning Timeshifts by Multiple Authors | Anthology | Alt History, Speculative |
| Multiple Authors | Not To Yield by Multiple Authors | Anthology | Military SFF, Science Fiction, Space Opera, Speculative |
