Rubies Uncle Sam Big Dog Pet Costume. Designed with large dogs in mind, the Rubies Uncle Sam Big Dog Pet Costume ($32) will help you and your dog show off your patriotism this Halloween.

Chewy carries a wide selection of dog Halloween costumes, including everything from lion's manes to dinosaur outfits. We tested 12 of the most popular ones.

Lion costume for medium and large dogs - This lion dog mane is the most realistic and best-fitting lion mane for dogs. For $12, you can turn your lovely pooch into a funnily ferocious King of the ...

Americans spend $700 million annually on costumes for their pets, the Retail Federation said. The most popular pet costumes include a pumpkin, a hot dog, a bat, a bumblebee and a spider, though ...