Halloween costume ideas for every zodiac sign, for dogs and cats

The best Halloween costume for your pet is one that plays up what their zodiac sign already does: a lion's mane for the Leo who makes an entrance, a detective's cap for the Scorpio who inspects every bag, an explorer's hat for the Sagittarius who always wants the long way round. Below are Halloween costume ideas for every zodiac sign, each tied to a habit you can spot at home, with a separate idea for dogs and for cats, because the same sign rarely shows up the same way in both.

Not sure of your pet's sign? The sign checker on this page works from a birthday or the day they came home. If your pet would rather skip the outfit, a themed bandana or a photo prop does the job.

The twelve costumes at a glance

Fire signs: costumes that make an entrance

Aries (21 March – 19 April): hero or villain

An Aries dog is first to the door when the bell goes, every time, skidding round the corner at full speed. That's a superhero answering a call, so give them a cape and photograph them mid-sprint. An Aries cat is just as fast but works the other side of the story: they sit on your desk, hold your gaze and push your pen off the edge. A supervillain's cape and a slow, evil look at the camera say it all.

Leo (23 July – 22 August): the lion and the monarch

A Leo dog catches the squeaky toy and immediately checks that you saw. A lion's mane gives them the starring role they've been rehearsing for, and the photos will have them looking straight down the lens. A Leo cat doesn't perform; they wait for you to. Skip the mane and go for royalty: a paper crown, the top cushion of the sofa as a throne, and you as the courtier, bowing.

Sagittarius (22 November – 21 December): the explorer and the astronaut

A Sagittarius dog slows at every side path and looks back at you, hoping today's the day you go left. Dress them as an explorer with a hat and a map, and take the photo at the start of a new route. A Sagittarius cat explores upwards instead, sizing up the top of the wardrobe and launching for it. That's an astronaut: a cardboard rocket or a space helmet prop, photographed at the top of their latest climb.

Earth signs: costumes for creatures of habit

Taurus (20 April – 20 May): the teddy bear and the loaf

A Taurus dog leans their whole weight against your legs and stays put. A teddy bear outfit suits a dog whose favourite activity is being cuddled without moving an inch. A Taurus cat has a spot, and woe betide anyone who takes it. When they tuck their paws under on the warm cushion, you already have a loaf of bread: the lowest-effort costume on this list, which a Taurus will appreciate.

Virgo (23 August – 22 September): the butler and the judge

A Virgo dog carries the toys back to the basket one by one, as if tidying up after a party. A bow tie turns them into the house butler, and a photo of them mid-delivery is the whole joke. A Virgo cat inspects. Step in a drop of water and they lift the paw, shake it slowly and look at you as if you arranged it. A judge's wig and a long, unimpressed stare make the verdict official.

Capricorn (22 December – 19 January): the climber and the boss

A Capricorn dog climbs onto every low wall and bench on a walk, surveys the view, then hops down and carries on. A mountain climber's rope and a little flag planted on the summit, even if the summit is the front step, is the costume. A Capricorn cat prefers to run things from the highest shelf, checking that the household keeps to schedule. Give them a tiny tie and call them the boss: take the photo from below, looking up, so they're presiding over the meeting.

Air signs: costumes with something to say

Gemini (21 May – 20 June): the tour guide and the DJ

A Gemini dog wants to sniff every lamppost on the street, then the next street, then the one after that. A little tour guide's flag fits a dog who's always leading you somewhere new. A Gemini cat narrates: a bag on the floor, a door left ajar, a question asked again from the next room. Headphones and a microphone prop make them the station's late-night DJ, broadcasting live.

Libra (23 September – 22 October): Cupid and the doorman

A Libra dog greets every person and every dog in the park with the same wiggling charm, introducing themselves to the whole bench. Wings and a little bow turn them into Cupid, matchmaking their way round the field. A Libra cat sits on the threshold of an open door, half in and half out, weighing it up for a full minute. Give them a doorman's cap: they spend so long at the door they might as well be in uniform.

Aquarius (20 January – 18 February): the inventor and the alien

An Aquarius dog invents games nobody taught them: the one where the ball goes under the sofa on purpose so they can stare at it, or the one where every stick must be carried home. Goggles and a lab coat make them the inventor. An Aquarius cat brings you one sock at three in the morning with great ceremony, then sits facing the wall. Antennae on a headband: they're an alien studying humans, and the sock was a test.

Water signs: costumes with feeling

Cancer (21 June – 22 July): the hermit crab and the ghost

A Cancer dog drags their blanket from room to room so home is never far away. That's a hermit crab carrying their shell, and a cardboard shell by the blanket makes a sweet photo. A Cancer cat disappears the moment the suitcase comes out and turns up hours later curled in your jumper. A ghost it is: a sheet-ghost prop beside the wardrobe, and a photo that catches them halfway out of hiding.

Scorpio (23 October – 21 November): the bodyguard and the detective

A Scorpio dog sleeps across your bedroom doorway and follows you from room to room. Dark glasses and an earpiece make them your bodyguard, which they've been all along. A Scorpio cat works from a distance, sniffing every bag you bring home and watching from the corner. A deerstalker hat and a magnifying glass turn them into the detective, case already half solved.

Pisces (19 February – 20 March): the sleepwalker and the mermaid

A Pisces dog dreams loudly: paws paddling, little woofs, chasing something only they can see. A nightcap and a pillow prop make them the sleepwalker, best photographed mid-snooze. A Pisces cat is drawn to water, patting at a dripping tap and sitting in the empty bath as if waiting for the tide. A mermaid's tail prop on the bathmat suits a cat who's already halfway out to sea in their head.

Costumes by element, if you'd rather go as a group

If you have more than one pet, or you fancy a matching outfit yourself, plan by element:

• Fire (Aries, Leo, Sagittarius): heroes and adventurers. Capes, crowns and maps.
• Earth (Taurus, Virgo, Capricorn): the dependable crew. Uniforms, bow ties and anything with a job title.
• Air (Gemini, Libra, Aquarius): the talkers and inventors. Props they can carry or wear on a headband.
• Water (Cancer, Scorpio, Pisces): the mysterious ones. Ghosts, detectives and creatures of the deep.

Here's a quick test before you buy anything: put two props on the floor and see which one your pet goes to first. Then check their sign and see whether the stars picked the same one.

Find your pet's sign before you shop

The costume works best when it fits the pet, not just the date. Look up your pet in the dog zodiac signs or cat zodiac signs guides, or get a free reading to see how their sign and breed blend into the habits behind the costume. No birthday? Use the day they came home: the reading works from an arrival day too.