The Irish Wolfhound is a breed of large sighthound that has, by its presence and substantial size, inspired literature, poetry and mythology. One of the largest of all breeds of dog, the breed is used by coursing hunters who have prized it for its ability to dispatch game caught by other, swifter sighthounds. In 1902, the Irish Wolfhound was declared the regimental mascot of the Irish Guards.

Sighthounds are a type of hound dog that hunts primarily by sight and speed, unlike scent hounds, which rely on scent and endurance.