26 Adorably Nerdy Halloween Costumes for Geeky Kids

Author image for John Summers
John Summers • Contributor
Oct 6, 2025 5:00 PM EDT

There's something absolutely magical about a kid in a Halloween costume who clearly has no idea what they're dressed as - but their parents absolutely do. Whether it's a toddler hobbit, a preschool Doc Ock, or a six-year-old Pokémon trainer trapped inside an iPhone, these costumes are peak geek family energy.

And yes, before you ask - of course there's a kid dressed as a horseshoe crab. Because nothing screams "Halloween spirit" like prehistoric marine armor.

This roundup is for all the proud nerd parents raising the next generation of fandom-loving, cosplay-ready legends. From deep-cut Marvel villains to vintage Star Wars and beautifully niche biology references, these kids win Halloween. (Meanwhile, I was just happy with a plastic mask and a He-Man sword that doubled as a spoon.)

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  • 01

    Ready to go on an adventure

    Cheezburger Image 10561160960
    via Pleated Jeans
  • 02

    Wednesday and cousin It

    Cheezburger Image 10561164800
    via Pleated Jeans
  • 03

    What kid wouldn't want to be a horseshoe crab?

    Cheezburger Image 10561160704
    via Pleated Jeans
  • 04

    Slinky dog

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  • 05

    A fire alarm

    Cheezburger Image 10561164032
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  • 06

    Just... Don't run

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  • 07

    Diving with sharks

    Cheezburger Image 10561162240
    via Pleated Jeans
  • 08

    Godzilla on his lunch break

    Cheezburger Image 10561161472
    via Pleated Jeans
  • 09

    The Nun

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  • 10

    Pepe le pew

    Cheezburger Image 10561161216
    via Pleated Jeans
  • 11

    Little Doc Ock

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  • 12

    Toy soldier

    Cheezburger Image 10561161984
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  • 13

    Is... Is that a pilot from Titanfall 2?!

    Cheezburger Image 10561162496
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  • 14

    Just a cute granny

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    via Pleated Jeans
  • 15

    Harry Marv and Kevin

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    via Pleated Jeans, @Dannyboydonnel
  • 16

    That clenched fist

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  • 17

    Sandy Cheeks

    Cheezburger Image 10561163264
    via Pleated Jeans
  • 18

    Got Rick Rolled

    WATCHME
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  • 19

    Adorably frightening

    Cheezburger Image 10561165824
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  • 20

    Anglerfish

    Cheezburger Image 10561166592
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  • 21

    She wanted to be a Transformer

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  • 22

    Abducted

    Cheezburger Image 10561165568
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  • 23

    Halloween done right

    Cheezburger Image 10561166848
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  • 24

    Pokémon Go

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    via Pleated Jeans
  • 25

    10/10

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    via Pleated Jeans
  • 26

    15/10

    Cheezburger Image 10561166336
    via Pleated Jeans

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horror movies hallowmeme halloween costumes horror scary halloween skeleton spooky funny memes halloween memes spooktober october spooky scary skeletons spooky memes halloween costume funny
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