Spider-UK is the name of two British alternate-reality superheroes appearing in American comic books published in Marvel Comics. The Billy Braddock version of Spider-UK is introduced as a Spider-Man endling of the Captain Britain Corps from Earth-833, and eventual leader of the Web Warriors, while the Zarina Zahari version of Spider-UK is introduced as a British-based W.H.O. gamer from Earth-834, who is recruited by Madame Web to protect the Spider-Verse.