Whether he wants to go as scary and spooky, heroic and strong, or fun and silly, you're sure to find his perfect costume in this collection of boys' Halloween costumes at BJ's Wholesale Club. Browse a wide range of Halloween costumes for boys in a variety of sizes, colors, and characters. This collection features costumes from big brands for everyday low prices, thanks to exclusive Club Member benefits. Shopping for a little guy? You can find adorable toddler boy Halloween costumes that are just his size. Does he love dinosaurs? Get him an Indominus Rex from Jurassic World costume so he can be the king of the dinos this Halloween. Is he a big fan of superheroes? This selection has tons of great boys' superhero costumes so he can be just like his idols for a night. Whatever his preference, style or wish this Halloween, BJ's Wholesale Club has it for less.