Dog Halloween Costumes: Ideas by Size, DIY and Safety Tips

The best dog Halloween costume is one your dog barely notices: light, short, open around the face, neck and legs, and on for minutes rather than hours. The most popular pet costumes in America for 2026 are a pumpkin, a hot dog and a ghost, according to the National Retail Federation – and all three work as a simple cape or sweater that leaves the head free. Below are 60+ dog costume ideas by size, no-sew DIY projects, owner-and-dog pairs, and the safety rules from the ASPCA, the American Kennel Club and the American Veterinary Medical Association.

Should your dog wear a costume at all?

Start with this question, because the three major animal-welfare and veterinary groups all do.

• The ASPCA says wearing a costume "may cause undue stress" for some pets and recommends you don't put a dog or cat in one "unless you know he or she loves it."
• The AKC says a safe costume "should never interfere with your dog's ability to see, hear, breathe, walk, or rest comfortably," and that simple accessories such as bandanas or decorative collars are often safer and more comfortable than full costumes.
• The AVMA advises taking time before Halloween to get your pet used to the costume and never leaving a costumed pet unsupervised.

So the honest order of preference is: (1) a festive bandana, collar or leash; (2) a light cape or shirt; (3) a full outfit, only for dogs who are already relaxed in sweaters and harnesses. A dog who freezes, hides or paws at clothing is telling you the answer is option 1.

What Americans spend and what dogs wear

The NRF's 2026 Halloween survey projects $0.92 billion in spending on pet costumes this year, out of $13.5 billion in total Halloween spending. The most popular pet costumes in the survey:

How to measure your dog for a costume

Pet costume sizing is not standardized: one brand's medium is another's extra-large. Measure with a soft tape and compare with each product's size chart in inches.

1. Neck: around the base of the neck where the collar sits. You should be able to slide two fingers under the tape.
2. Chest girth: around the widest part of the rib cage, just behind the front legs. This is the measurement that matters most.
3. Back length: from the base of the neck to the base of the tail.
4. Weight: use it only as a rough check; a 25-pound French bulldog and a 25-pound whippet do not wear the same size.

If your dog falls between sizes, go by chest girth and size up; a loose cape is safer than a tight one. Deep-chested, long-backed and broad-shouldered breeds – dachshunds, greyhounds, bulldogs, corgis – often fit breed-specific or adjustable Velcro designs better than standard cuts.

Costume ideas for small dogs

Dogs under about 20 pounds: Chihuahuas, Yorkies, dachshunds, pugs, shih tzus, small terriers. Small dogs chill easily and are used to sweaters, so a soft pullover-style costume is usually tolerated. Avoid anything heavy on the head or neck.

Costume ideas for medium dogs

Roughly 20 to 50 pounds: beagles, corgis, cocker spaniels, border collies, bulldogs, Australian shepherds. Medium dogs are active, so favor capes and shirts that stay put when they run.

Costume ideas for large dogs

Over about 50 pounds: Labs, golden retrievers, German shepherds, huskies, Great Danes. Large and thick-coated dogs overheat faster in clothing; the AKC notes that costumes trap body heat and raise the risk of overheating, especially in warm weather, active dogs, thick-coated breeds and dogs with breathing difficulties. Think accessories, not outfits.

Easy DIY dog costumes

Homemade costumes are often safer than store-bought ones because you control the fit and leave out the extras. The AKC specifically warns about buttons, gemstones and other detachable decorations, and notes that glitter, dyes and decorative materials can be harmful if swallowed or irritate the skin. Use felt, fleece and Velcro; skip pins, glitter, sequins, bells and elastic around the neck.

No-sew bat wings (10 minutes)

1. Cut two wing shapes from stiff black felt, each about as long as your dog's back.
2. Cut two slits in the center strip between the wings.
3. Thread the back strap of your dog's harness through the slits. Done.

Felt-dot ladybug or bee (15 minutes)

1. Start with a plain red or yellow dog T-shirt, or a child's T-shirt that fits loosely.
2. Cut black felt dots or stripes.
3. Attach with fabric glue and let it dry completely before the dog wears it.

T-shirt superhero cape (10 minutes)

1. Cut the back panel from an old T-shirt, keeping the neckband attached as a loop.
2. Snip the neckband open and add a Velcro tab so it releases under pressure.
3. Glue on a felt initial. Trim the cape so it ends before the tail.

Bandana costumes (5 minutes)

• Cowboy: red paisley bandana.
• Pumpkin: orange bandana with a felt jack-o'-lantern face.
• Candy corn: three stripes of white, orange and yellow felt on a triangle.
• Ghost: white bandana with two black felt eyes.
• Bat: black bandana cut with a scalloped edge.

Sweater upgrades

A dog sweater your dog already wears is the perfect base: add felt spikes for a dinosaur, a fabric fin for a shark, or white felt bones for a skeleton.

Owner and dog costume duos

Matching with your dog is the easiest way to dress up a dog who only tolerates a bandana – you carry the theme.

More pairs for two humans are in couples Halloween costumes, and whole-family themes that include the dog are in group Halloween costumes.

Dog costume safety checklist

Combine the ASPCA, AKC and AVMA guidance and you get this checklist. Run through it before Halloween, not on the night.

1. It doesn't restrict movement, sight, hearing or breathing. Nothing over the eyes, ears, nose or mouth; nothing tight at the neck, chest or legs. The ASPCA adds that a costume must not limit the ability to bark or meow.
2. Nothing can be chewed off and swallowed. Check for small, dangling or easily chewed-off pieces – the ASPCA and AVMA both flag them as choking hazards.
3. It fits. The ASPCA warns that ill-fitting outfits can get twisted on objects or on your pet and cause injury.
4. There's been a dress rehearsal. Try the costume on at home first. The AKC recommends introducing it ahead of time with patience, positive reinforcement and high-value treats.
5. Your dog is supervised the whole time. The AVMA says never to leave a costumed pet unsupervised.
6. It isn't too warm. Avoid heavy costumes outdoors in warm weather and on thick-coated or flat-faced dogs.
7. ID stays on. Collar, ID tag and microchip details up to date; the costume must not cover or replace the collar. After dark, the ASPCA recommends a reflective collar and a secure leash.

Signs your dog wants the costume off

According to the AKC, signs of discomfort include panting, freezing, refusing to move, pawing at the costume, repeatedly trying to remove it and flattened ears. If you see any of them, take the costume off immediately. The ASPCA's advice for dogs who seem distressed: let them wear their "birthday suit" or a festive bandana instead.

How to introduce a costume in four short sessions

1. Day 1: let your dog sniff the costume on the floor; treat.
2. Day 2: drape it over the back for a few seconds; treat; remove.
3. Day 3: fasten it for a minute while you play or feed dinner.
4. Day 4: five to ten minutes of normal activity indoors. If your dog moves freely and ignores it, you're ready for photos.

If your dog is still stiff or worried at step 2, stop there and go with the bandana.

Halloween night with a dog

The costume is the smallest risk of the evening. The bigger ones, per the ASPCA and AVMA:

• Candy. Chocolate in all forms – especially dark and baking chocolate – is dangerous for dogs, and sugar-free candy or gum containing xylitol can cause serious problems. The AVMA adds raisins, which can cause kidney failure. Keep the candy bowl and the kids' haul out of reach; our Halloween candy guide covers safe storage for the human side.
• The front door. A constant stream of costumed strangers is stressful. Both groups recommend keeping all but the most social dogs in a quiet room away from the door during peak trick-or-treating hours, with a chew or food puzzle.
• Escape risk. Make sure your dog has identification – microchip, collar and ID tag – in case they slip out while you hand out candy.
• Decorations. Keep lit candles and jack-o'-lanterns out of reach; a wagging tail can knock one over. Glow sticks, batteries and wires should also be out of reach. See Halloween decorations for flameless options.
• Human costumes. Small accessories and costume pieces are choking hazards for dogs too.

If you think your dog has eaten something toxic, call your veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435 right away.

Where dogs can show off a costume

Dog costume parades and contests are common at pet stores, breweries, farmers' markets and neighborhood events in the last two weeks of October; check your city's parks department and local shelters, which often run them as fundraisers. A trunk-or-treat can also be a calmer setting than a busy street, if dogs are allowed. Keep visits short, bring water, and leave when your dog stops having fun.

For more ideas for the humans in the house, see Halloween costume ideas; for the whole night's safety plan, see Halloween safety tips; and for everything else, the main Halloween guide.