Sci-fi - 70 Halloween Costume Ideas

Sci-Fi Halloween Costume Ideas in 2026

Sleek suits, tech details, costumes built for a future that never quite arrived.
Action Superhero Fantasy
Frank The Rabbit From Donnie Darko Halloween Costume Guide
Donnie Darko

Frank The Rabbit From Donnie Darko Halloween Costume Guide

 Become Sombra Costume: The Ultimate Halloween Guide
Overwatch

Become Sombra Costume: The Ultimate Halloween Guide

 Dress Like Yo-Yo
Female

Dress Like Yo-Yo

 Men in Black Costume Guide – Halloween 2026
Men In Black

Men in Black Costume Guide – Halloween 2026

 Griffin Costume from Men in Black 3 – Halloween 2026
Male

Griffin Costume from Men in Black 3 – Halloween 2026

 Migs Mayfeld From The Mandalorian
Male

Migs Mayfeld From The Mandalorian

 Ellen Ripley Halloween Costume Guide
Female

Ellen Ripley Halloween Costume Guide

 Philip J. Fry From Futurama
Futurama

Philip J. Fry From Futurama

 Flynne Fisher Costume from The Peripheral – Halloween 2026
Chloë Grace Moretz

Flynne Fisher Costume from The Peripheral – Halloween 2026

 M3gan Costume from M3GAN – Halloween 2026 Guide
Amie Donald

M3gan Costume from M3GAN – Halloween 2026 Guide

 Booker DeWitt Halloween Costume Guide
Bioshock Infinite

Booker DeWitt Halloween Costume Guide

 Rosalind Lutece From BioShock Infinite
Female

Rosalind Lutece From BioShock Infinite

 Octane Halloween Costume Guide
Apex Legends

Octane Halloween Costume Guide

 Pearl Halloween Costume Guide
Cartoon

Pearl Halloween Costume Guide

 Officer K Halloween Costume Guide
Blade Runner 2049

Officer K Halloween Costume Guide

 Leila Kalomi Halloween Costume Guide
Star Trek

Leila Kalomi Halloween Costume Guide

 Captain Kirk Halloween Costume Guide
Star Trek

Captain Kirk Halloween Costume Guide

 Spock Halloween Costume Guide
Star Trek

Spock Halloween Costume Guide

 Hikaru Sulu From Star Trek
George Takei

Hikaru Sulu From Star Trek

 Paul Atreides From Dune
Dune

Paul Atreides From Dune
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About Sci-fi Costumes

Sci-fi costumes lean on clean lines and tech details over anything textured or worn-in, Sombra's tactical tech, the Men in Black suits, Ellen Ripley's utilitarian gear. Sharp and functional beats messy every time in this genre.

A few well-placed tech accents, a visor, gloves, a chest piece, do more than an entire costume covered in gadgets. Pick one or two details and make them count.

Sci-fi Costumes: FAQ

Some do, most don't. Check the specific character, plenty read fine without any electronics involved.

It covers all of them, film, TV, and games with a sci-fi setting.

A plain black or tactical-style outfit plus one tech accessory, like the Men in Black suits.

Related Tags

Action superhero fantasy