Michigan Great Dane named world's tallest dog Kevin Doorlag stands with his dog Zeus in Otsego, Mich. Credit: AP Photo/Guinness World Records 2013 Book, HO, Kevin Scott Ramos (AP) OTSEGO, Mich. - A Great Dane from Michigan is doggone tall. The Guinness World Records 2013 book published Thursday recognizes Zeus of Otsego, Mich., as the world's Tallest Dog. The 3-year-old measures 44 inches from foot to shoulder. Standing on his hind legs, Zeus stretches to 7-foot-4 and towers over his owner, Denise Doorlag. Zeus is just an inch taller than the previous record-holder, Giant George. Zeus weighs 155 pounds and eats a 30-pound bag of food every two weeks. Doorlag says she had to get a van to be able to transport Zeus.