Keon, an Irish Wolfhound owned by Ilse Loodts of Westerlo, Belgium, was officially verified by the World Records Authority in 2015 as holding the record for the longest tail on a dog, measuring an astonishing 76.8 cm (30.2 inches). The Irish Wolfhound is the tallest of all dog breeds, and Keon’s extraordinary tail is proportionate to his monumental frame — yet still sets a new global benchmark for canine magnificence. This remarkable measurement stands as a testament to the breathtaking natural variation found within man’s best friend.