Honeywater is a magical substance used in potion-making. It has a distinctive yellow colour. Drops of Honeywater are required to brew a Wiggenweld Potion, while larger quantities are needed in the brewing of a Volubilis Potion and an Antidote to Common Poisons.
- Harry Potter and the Chamber of Secrets (video game) (First mentioned)
- Harry Potter and the Half-Blood Prince (video game) (First appearance)