Transform trick-or-treating into an unforgettable adventure! The Costco Halloween store is your ultimate destination for premium kids' Halloween costumes designed to inspire endless fun and creativity. Whether your child wants to save the day as a brave firefighter or heroic police officer, fly high as a soaring fighter pilot or space astronaut, cast a spell as a classic witch, or stomp into prehistoric fun as a roaring dinosaur, our high-quality collection features show-stopping styles that both kids and parents will love.

From glittering fairies, mermaids, and princesses to stealthy ninjas and howling werewolves, every outfit is crafted for exceptional comfort, durability, and standout style to make dressing up the best part of the season. Discover the perfect look at Costco and make this year's trick-or-treat experience truly magical!

Watch their imaginations run wild with our top-trending costumes:

• Heroes & Action Stars: Equip them for their next big mission as a brave fire fighter, fighter pilot, space astronaut, stealthy ninja, or heroic police officer.
• Magical Fairytales & Fantasy: Let their dreams take flight as a glittering fairy, pretty princess, mystical unicorn, colorful butterfly, or mermaid.
• Wild Creatures & Classic Spooks: Unleash their wild side as a stomping dinosaur, howling werewolf, or classic, spell-casting witch.