A lynx is a medium-sized wildcat, indigenous to Eurasia and North America, generally known for its reflective eyes, short tail and tufted black hair on its ears.
It is a corporeal form of the Patronus Charm. Kingsley Shacklebolt's Patronus takes the form of a lynx. In 1997, it appeared to the guests at the Wedding of William Weasley and Fleur Delacour and warned them of the Fall of the Ministry of Magic.
- Harry Potter and the Deathly Hallows (First appearance)
- Harry Potter and the Deathly Hallows: Part 1
- Harry Potter: The Character Vault (mentioned only)
- Pottermore (Appears as a Patronus)