Best-Rated Halloween Costumes on Amazon UK

20 gifts from £12.99 to £38.32

Every classic Halloween character, and only the costume its buyers rate most highly. For this list we searched Amazon UK character by character (ghost, vampire, witch, werewolf and the rest) and ranked the adult options by star rating weighted by the number of reviews, so a 4.4-star costume with 3,000 verdicts beats a perfect score from a handful. Anything with fewer than 100 reviews or under 4.2 stars was ruled out, and where the best-rated choice for a character is really a cloak or a make-up kit rather than a full outfit, the note says so. Each pick was checked for price and stock on Amazon UK on 25 September 2026 and is sold or dispatched by Amazon. Four standout children's costumes close the list. Prices are tracked, so you'll see if one drops before the big night. Sizing varies between brands, so check the size chart before you order.