The 51st Saturn Awards were presented by the Academy of Science Fiction, Fantasy and Horror Films to honor the best in science fiction, fantasy, horror, and other genres belonging to genre fiction in film, television, and home entertainment.

The change in the number of the awards name was introduced at the previous ceremony, which was renamed from "47th Saturn Awards" to "50th Saturn Awards" to celebrate 50 years of the Saturn Awards (founded in 1972); this change was also implemented for this edition of the awards. The ceremony was held on February 4, 2024, at Los Angeles Marriott Burbank Airport Hotel in Burbank, California, and was live-streamed for the second consecutive year on Electric Entertainment's OTT app and FAST channel ElectricNow. Joel McHale hosted the event for the second year in a row. This year's show was dedicated to the memory of actor and former Saturn Awards host Lance Reddick (1962–2023), and filmmaker and George Pal Memorial Award past recipient William Friedkin (1935–2023).

The nominations announcement and awards process was postponed in solidarity with the 2023 Hollywood labor disputes, which took place from May 2 to November 9. Ultimately, the nominees were revealed on December 6, 2023. The epic science fiction film Avatar: The Way of Water led the film nominations with twelve — two more than what the original received in 2010 — including Best Science Fiction Film and four acting nominations, followed by Oppenheimer with eleven.

The aforementioned second installment of the Avatar franchise won the most awards with four, including Best Science Fiction Film and Best Film Direction (James Cameron). For the television categories, Star Trek: Picard led the nominations with seven, for its third and final season, followed by Star Trek: Strange New Worlds with six. Overall for television, the Star Trek Universe series, all from Paramount+, received a total of 14 nominations across 3 different shows — Picard (7), Strange New Worlds (6), and Lower Decks (1) — a franchise record for the Saturn Awards for the television categories in a single year. The franchise went on to dominate at the ceremony, winning five awards (4 for Picard and 1 for Strange New Worlds), including Best Science Fiction Television Series for Picard.

This year's Saturn Awards eligibility period for television was from July 2022 through July 2023 while film was extended to September 2023.

Category changes

Introduced Best New Genre Television Series

Revived Best Superhero Television Series

Discontinued Best Actor in a Streaming Television Series Best Actress in a Streaming Television Series Best Streaming Horror/Thriller Television Series Best Supporting Actor in a Streaming Television Series Best Supporting Actress in a Streaming Television Series

Winners and nominees

Film

Best Superhero Film Best Science Fiction Film Guardians of the Galaxy Vol. 3 Ant-Man and the Wasp: Quantumania Black Panther: Wakanda Forever Blue Beetle The Flash Avatar: The Way of Water The Creator M3GAN Prey Transformers: Rise of the Beasts Best Fantasy Film Best Horror Film Indiana Jones and the Dial of Destiny Barbie Dungeons & Dragons: Honor Among Thieves Haunted Mansion The Little Mermaid Talk to Me Barbarian Evil Dead Rise Insidious: The Red Door Renfield Scream VI Smile Best Action / Adventure Film Best Thriller Film Mission: Impossible – Dead Reckoning Part One Bullet Train The Equalizer 3 Fast X John Wick: Chapter 4 The Woman King Oppenheimer Don't Worry Darling Glass Onion: A Knives Out Mystery Knock at the Cabin The Lesson The Menu Best Animated Film Best International Film Spider-Man: Across the Spider-Verse Elemental Puss in Boots: The Last Wish The Super Mario Bros. Movie Suzume Teenage Mutant Ninja Turtles: Mutant Mayhem Sisu () Madeleine Collins () The Missing () The Origin of Evil () Ransomed () Speak No Evil () Best Film Direction Best Film Writing James Cameron – Avatar: The Way of Water Greta Gerwig – Barbie James Gunn – Guardians of the Galaxy Vol. 3 James Mangold – Indiana Jones and the Dial of Destiny Mark Mylod – The Menu Christopher Nolan – Oppenheimer Danny and Michael Philippou – Talk to Me Avatar: The Way of Water – James Cameron and Rick Jaffa & Amanda Silver Barbie – Noah Baumbach and Greta Gerwig The Menu – Seth Reiss and Will Tracy Mission: Impossible – Dead Reckoning Part One – Erik Jendresen and Christopher McQuarrie Oppenheimer – Christopher Nolan Pearl – Mia Goth and Ti West |- ! style="background:#EEDD82; width:50%"| Best Actor in a Film ! style="background:#EEDD82; width:50%"| Best Actress in a Film |- | valign="top" | Harrison Ford – Indiana Jones and the Dial of Destiny as Indiana Jones Ralph Fiennes – The Menu as Chef Julian Slowik Ben Kingsley – Jules as Milton Robinson Cillian Murphy – Oppenheimer as J. Robert Oppenheimer Chris Pratt – Guardians of the Galaxy Vol. 3 as Peter Quill / Star-Lord Keanu Reeves – John Wick: Chapter 4 as John Wick Sam Worthington – Avatar: The Way of Water as Jake Sully | valign="top" | Margot Robbie – Barbie as Barbie Viola Davis – The Woman King as General Nanisca Mia Goth – Pearl as Pearl Amber Midthunder – Prey as Naru Zoe Saldaña – Avatar: The Way of Water as Neytiri Anya Taylor-Joy – The Menu as Margot Mills / Erin |- ! style="background:#EEDD82; width:50%"| Best Supporting Actor in a Film ! style="background:#EEDD82; width:50%"| Best Supporting Actress in a Film |- | valign="top" | Nicolas Cage – Renfield as Dracula Robert Downey Jr. – Oppenheimer as Lewis Strauss Ryan Gosling – Barbie as Ken Michael Keaton – The Flash as Bruce Wayne / Batman Stephen Lang – Avatar: The Way of Water as Miles Quaritch Mads Mikkelsen – Indiana Jones and the Dial of Destiny as Jürgen Voller | valign="top" | Emily Blunt – Oppenheimer as Kitty Oppenheimer Angela Bassett – Black Panther: Wakanda Forever as Queen Ramonda Jane Curtin – Jules as Joyce Melissa McCarthy – The Little Mermaid as Ursula Phoebe Waller-Bridge – Indiana Jones and the Dial of Destiny as Helena Shaw Sophie Wilde – Talk to Me as Mia |- ! style="background:#EEDD82; width:50%"| Best Younger Actor in a Film ! style="background:#EEDD82; width:50%"| Best Film Editing |- | valign="top" | Xolo Maridueña – Blue Beetle as Jaime Reyes / Blue Beetle Halle Bailey – The Little Mermaid as Ariel Vivien Lyra Blair – The Boogeyman as Sawyer Harper Jack Champion – Avatar: The Way of Water as Miles "Spider" Socorro Violet McGraw – M3GAN as Cady Noah Schnapp – The Tutor as Jackson | valign="top" | Oppenheimer – Jennifer Lame Avatar: The Way of Water – Stephen Rivkin, David Brenner, John Refoua, and James Cameron Fast X – Dylan Highsmith, Kelly Matsumoto, Corbin Mehl, and Laura Yanovich Indiana Jones and the Dial of Destiny – Andrew Buckland, Michael McCusker, and Dirk Westervelt John Wick: Chapter 4 – Nathan Orloff Mission: Impossible – Dead Reckoning Part One – Eddie Hamilton |- ! style="background:#EEDD82; width:50%"| Best Music in a Film ! style="background:#EEDD82; width:50%"| Best Film Production Designer |- | valign="top" | Indiana Jones and the Dial of Destiny – John Williams Avatar: The Way of Water – Simon Franglen Barbie – Mark Ronson and Andrew Wyatt The Little Mermaid – Alan Menken Renfield – Marco Beltrami Spider-Man: Across the Spider-Verse – Daniel Pemberton | valign="top" | Barbie – Sarah Greenwood Avatar: The Way of Water – Dylan Cole and Ben Procter Guardians of the Galaxy Vol. 3 – Beth Mickie John Wick: Chapter 4 – Kevin Kavanaugh Oppenheimer – Ruth De Jong Renfield – Alec Hammond |- ! style="background:#EEDD82; width:50%"| Best Film Costume Design ! style="background:#EEDD82; width:50%"| Best Make-Up in a Film |- | valign="top" | Barbie – Jacqueline Durran Avatar: The Way of Water – Bob Buck and Deborah Scott Black Panther: Wakanda Forever – Ruth E. Carter Guardians of the Galaxy Vol. 3 – Judianna Makovsky Indiana Jones and the Dial of Destiny – Joanna Johnston Oppenheimer – Ellen Mirojnick | valign="top" | The Covenant – Donald Mowat Evil Dead Rise – Luke Polti Guardians of the Galaxy Vol. 3 – Alexei Dmitriew, Lindsay MacGowan, and Shane Mahan Oppenheimer – Luisa Abel and Jason Hamer Prey – Alec Gillis and Tom Woodruff Jr. Renfield – Christien Tinsley |- ! style="background:#EEDD82; width:50%"| Best Film Special / Visual Effects ! style="background:#EEDD82; width:50%"| Best Independent Film |- | valign="top" | Avatar: The Way of Water – Joe Letteri, Richard Baneham, Eric Saindon, and Daniel Barrett The Creator – Jay Cooper, Ian Comley, Andrew Roberts, and Neil Corbould Guardians of the Galaxy Vol. 3 – Stéphane Ceretti, Alexis Wajsbrot, Guy Williams, and Dan Sudick Indiana Jones and the Dial of Destiny – Andrew Whitehurst, Kathy Siegel, Robert Weaver, and Alistair Williams Mission: Impossible – Dead Reckoning Part One – Alex Wuttke, Simone Coco, Jeff Sutherland, and Neil Corbould Oppenheimer – Andrew Jackson, Giacomo Mineo, Scott R. Fisher, and Dave Drzewiecki | valign="top" | Pearl Aporia Brooklyn 45 Fall Jules The Tutor

Television

Programs {| class=wikitable |- ! style="background:#EEDD82; width:50%"| Best Science Fiction Television Series ! style="background:#EEDD82; width:50%"| Best Fantasy Television Series |- | valign="top" | Star Trek: Picard (Paramount+) Andor (Disney+) Foundation (Apple TV+) The Mandalorian (Disney+) The Peripheral (Prime Video) Silo (Apple TV+) Star Trek: Strange New Worlds (Paramount+) | valign="top" | Wednesday (Netflix) Ghosts (CBS) Good Omens (Prime Video) House of the Dragon (HBO / Max) The Lord of the Rings: The Rings of Power (Prime Video) Mayfair Witches (AMC) Schmigadoon! (Apple TV+) |- ! style="background:#EEDD82; width:50%"| Best Horror Television Series ! style="background:#EEDD82; width:50%"| Best Action / Adventure / Thriller Television Series |- | valign="top" | The Last of Us (HBO / Max) American Horror Story (FX / Hulu) Anne Rice's Interview with the Vampire (AMC) Chucky (Syfy / USA Network) Fear the Walking Dead (AMC) From (MGM+) What We Do in the Shadows (FX / Hulu) | valign="top" | Outlander (Starz) La Brea (NBC) Manifest (Netflix) Quantum Leap (NBC) Tom Clancy's Jack Ryan (Prime Video) The Witcher (Netflix) Yellowjackets (Showtime) |- ! style="background:#EEDD82; width:50%"| Best Animated Television Series or Special ! style="background:#EEDD82; width:50%"| Best Superhero Television Series |- | valign="top" | Star Wars: The Bad Batch (Disney+) Chainsaw Man (Crunchyroll) Gremlins: Secrets of the Mogwai (HBO / Max) Guillermo del Toro's Pinocchio (Netflix) Harley Quinn (HBO / Max) My Adventures with Superman (Adult Swim) Star Trek: Lower Decks (Paramount+) | valign="top" | Superman & Lois (The CW) Doom Patrol (HBO / Max) The Flash (The CW) The Sandman (Netflix) Secret Invasion (Disney+) She-Hulk: Attorney at Law (Disney+) Stargirl (The CW) |- ! style="background:#EEDD82; width:50%"| Best Television Presentation ! style="background:#EEDD82; width:50%"| Best New Genre Television Series |- | valign="top" | Werewolf by Night (Disney+) Black Mirror (Netflix) Guillermo del Toro's Cabinet of Curiosities (Netflix) Hocus Pocus 2 (Disney+) The Midnight Club (Netflix) Mrs. Davis (Peacock) The Munsters (Netflix) | valign="top" | Andor (Disney+) The Ark (Syfy) The Last of Us (HBO / Max) The Lord of the Rings: The Rings of Power (Prime Video) Silo (Apple TV+) The Walking Dead: Dead City (AMC) Wednesday (Netflix)

Acting

Best Actor in a Television Series Best Actress in a Television Series Patrick Stewart – Star Trek: Picard (Paramount+) as Jean-Luc Picard Sam Heughan – Outlander (Starz) as Jamie Fraser Tyler Hoechlin – Superman & Lois (The CW) as Clark Kent / Superman Diego Luna – Andor (Disney+) as Cassian Andor Anson Mount – Star Trek: Strange New Worlds (Paramount+) as Christopher Pike Pedro Pascal – The Last of Us (HBO / Max) as Joel Miller