Horned slugs are a type of a slug that, when stewed, are used as an ingredient in the Boil-Cure Potion. They are kept with other potion ingredients in the Potions Classroom at Hogwarts School of Witchcraft and Wizardry.
- Harry Potter and the Half-Blood Prince (video game) (First appearance)
- The Road to Hogwarts Sweepstakes
- Harry Potter for Kinect
- Wonderbook: Book of Potions