26 Adorably Nerdy Halloween Costumes for Geeky Kids

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.)

Author image for John Summers John Summers
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