Freddy, a Great Dane known as the tallest dog in the world, has died. Guinness World Records , which conferred the tallest-dog honor on Freddy in 2016 , announced Freddy's passing in a press release Wednesday. He was eight and a half. When measured by a veterinarian and the book's editor-in-chief, Freddy stood three feet, four inches "from foot to withers" -- the withers being the tallest part of a ...