Alien Costumes
![Stitch Adult Inflatable Costume](https://images.halloweencostumes.co.uk/products/81840/1-2/stitch-adult-inflatable-costume.jpg)
![Women's Let's Jet Costume](https://images.halloweencostumes.co.uk/products/85520/1-2/womens-lets-jet-costume.jpg)
![Oversized Alien Adult Costume](https://images.halloweencostumes.co.uk/products/44108/1-2/oversized-alien-adult-costume.jpg)
![Women's Galactic Alien Babe-update1](https://images.halloweencostumes.co.uk/products/44099/1-2/womens-galactic-alien-babe-update1.jpg)
![Womens Space Cowgirl Costume](https://images.halloweencostumes.co.uk/products/90173/1-2/womens-space-cowgirl-costume.jpg)
![Adult Alien Invader Costume](https://images.halloweencostumes.co.uk/products/63750/1-2/adult-alien-invader-costume.jpg)
![Plus Size Alf Costume](https://images.halloweencostumes.co.uk/products/25692/1-2/plus-size-alf-costume.jpg)
![Women's Outer Space Alien Costume](https://images.halloweencostumes.co.uk/products/67526/1-2/womens-outer-space-alien-costume.jpg)
![Women's Cozy Alien Costume](https://images.halloweencostumes.co.uk/products/67531/1-2/womens-cozy-alien-costume.jpg)
![Sexy Cosmic Alien Costume](https://images.halloweencostumes.co.uk/products/67528/1-2/sexy-cosmic-alien-costume.jpg)
![Kids Blue Alien Costume](https://images.halloweencostumes.co.uk/products/81457/1-2/kids-blue-alien-costume.jpg)
![Adult Inflatable Alien Costume](https://images.halloweencostumes.co.uk/products/70154/1-2/adult-inflatable-alien-costume.jpg)
![Alien Dog Costume](https://images.halloweencostumes.co.uk/products/70369/1-2/alien-dog-costume.jpg)
![Adult Rocket Ship Costume](https://images.halloweencostumes.co.uk/products/75271/1-2/adult-rocket-ship-costume.jpg)
![Adult Area 51 Escapee Costume](https://images.halloweencostumes.co.uk/products/64024/1-2/adult-area-51-escapee-costume.jpg)
![Plus Size Cosmonaut Alien Costume](https://images.halloweencostumes.co.uk/products/67530/1-2/plus-size-cosmonaut-alien-costume.jpg)
![Womens Spaceship Maternity Costume](https://images.halloweencostumes.co.uk/products/75272/1-2/womens-spaceship-maternity-costume.jpg)
![Womens Gamma Ray Alien Costume](https://images.halloweencostumes.co.uk/products/63739/1-2/womens-gamma-ray-alien-costume.jpg)
![Womens Holographic Metallic Bandeau Bike Short](https://images.halloweencostumes.co.uk/products/82823/1-2/womens-holographic-metallic-bandeau-bike-short.jpg)
![Women's Cosmonaut Alien Costume](https://images.halloweencostumes.co.uk/products/67529/1-2/womens-cosmonaut-alien-costume.jpg)
![Unidentified Flying Dog Costume](https://images.halloweencostumes.co.uk/products/70370/1-2/unidentified-flying-dog-costume.jpg)
![Adult UFO Costume](https://images.halloweencostumes.co.uk/products/70168/1-2/adult-ufo-costume.jpg)
![Giant Alien Inflatable Adult Costume](https://images.halloweencostumes.co.uk/products/74261/1-2/giant-alien-inflatable-adult-costume.jpg)
![Adult E.T. Elliot Kit](https://images.halloweencostumes.co.uk/products/26289/1-2/adult-et-elliot-kit.jpg)
![Plus Size Black Suit Costume](https://images.halloweencostumes.co.uk/products/13461/1-2/plus-size-black-suit-costume.jpg)
![Plus Size Oversized Alien Costume for Men](https://images.halloweencostumes.co.uk/products/66710/1-2/plus-size-oversized-alien-costume-for-men.jpg)
![Mens Black Suit Costume 1](https://images.halloweencostumes.co.uk/products/5111/1-2/mens-black-suit-costume-1.jpg)
![Women's L/S Iridescent Bodysuit](https://images.halloweencostumes.co.uk/products/82689/1-2/womens-l-s-iridescent-bodysuit.jpg)
![Sexy Beam Me Up Babe Women's Costume](https://images.halloweencostumes.co.uk/products/72990/1-2/sexy-beam-me-up-babe-womens-costume.jpg)
![Womens Space Cadet Scientist Costume](https://images.halloweencostumes.co.uk/products/93473/1-2/womens-space-cadet-scientist-costume.jpg)
![Womens Space Cadet Costume](https://images.halloweencostumes.co.uk/products/57969/1-2/womens-space-cadet-costume.jpg)
![Plus Size Outer Space Alien Costume](https://images.halloweencostumes.co.uk/products/67527/1-2/plus-size-outer-space-alien-costume.jpg)
![Womens Sexy Ruthless Galactic Empress Costume](https://images.halloweencostumes.co.uk/products/91299/1-2/womens-sexy-ruthless-galactic-empress-costume.jpg)
![Silver Laser Cut Metallic Catsuit Costume](https://images.halloweencostumes.co.uk/products/82816/1-2/silver-laser-cut-metallic-catsuit-costume.jpg)
![Kids Alien Costume](https://images.halloweencostumes.co.uk/products/9377/1-2/kids-alien-costume.jpg)
![Womens Sexy Out of This World Costume](https://images.halloweencostumes.co.uk/products/85522/1-2/womens-sexy-out-of-this-world-costume.jpg)
![Womens Solid Silver Mock Neck Jumpsuit](https://images.halloweencostumes.co.uk/products/22061/1-2/womens-solid-silver-mock-neck-jumpsuit.jpg)
![Womens Sexy Galaxy Trooper Costume](https://images.halloweencostumes.co.uk/products/93487/1-2/womens-sexy-galaxy-trooper-costume.jpg)
![Womens Plus Size Space Cadet Scientist Costume](https://images.halloweencostumes.co.uk/products/93474/1-2/womens-plus-size-space-cadet-scientist-costume.jpg)
![Inflatable Rocket Ship Adult Costume](https://images.halloweencostumes.co.uk/products/69962/1-2/inflatable-rocket-ship-adult-costume.jpg)
![Women's Pluto's Princess Costume](https://images.halloweencostumes.co.uk/products/53579/1-2/womens-plutos-princess-costume.jpg)
![Adult Area 51 Escapee Costume](https://images.halloweencostumes.co.uk/products/67286/1-2/adult-area-51-escapee-costume.jpg)
![Women's Hologram Bodysuit](https://images.halloweencostumes.co.uk/products/82685/1-2/womens-hologram-bodysuit.jpg)
![Womens Black Patent Over the Knee Boots](https://images.halloweencostumes.co.uk/products/75832/1-2/womens-black-patent-over-the-knee-boots.jpg)
![Adult White 70's Boots](https://images.halloweencostumes.co.uk/products/76947/1-2/adult-white-70s-boots.jpg)
![Close Encounter Alien Glasses](https://images.halloweencostumes.co.uk/products/14760/1-2/close-encounter-alien-glasses.jpg)
![Close Encounter Glasses Silver/Rainbow](https://images.halloweencostumes.co.uk/products/69174/1-2/close-encounter-glasses-silver-rainbow.jpg)
![Alf Plush Backpack](https://images.halloweencostumes.co.uk/products/88277/1-2/alf-plush-backpack.jpg)
![Tin Woodsman Makeup Kit](https://images.halloweencostumes.co.uk/products/80094/1-2/tin-woodsman-makeup-kit.jpg)
![Women's Silver Gogo Boots](https://images.halloweencostumes.co.uk/products/58053/1-2/womens-silver-gogo-boots.jpg)
![Alf Plush Slippers Adult](https://images.halloweencostumes.co.uk/products/88510/1-2/alf-plush-slippers-adult.jpg)
![Moon Purse](https://images.halloweencostumes.co.uk/products/70100/1-2/moon-purse.jpg)
![Adult Cosmic Purple Wig](https://images.halloweencostumes.co.uk/products/67532/1-2/adult-cosmic-purple-wig.jpg)
Space. The great unknown. The wise minds of Stephen Hawking and Carl Sagan think that aliens exist out there somewhere, and who are we to argue with a bunch of science experts like those guys. In fact, we like to celebrate the idea of space aliens with costumes based on some of the extra-terrestrials imagined up by mankind over the last few hundred years and the astronauts who'll probably end up having to fight them in the ensuing galactic battle against them.
This year, find the perfect alien Halloween costume. Each of our alien costumes highlight a different type of extraterrestrial look. Whether your dream is to be a little green man who scares the living daylights out of all of your neighbors, a xenomorph from the Alien movies or the loveable Alf, we got you covered. Full body suits, masks, accessories and everything in between; that's the kind of arsenal we're packing when it comes to life beyond Earth.