Great Dane
Titan (2005 – 31 March 2010) was an American male white Great Dane who was a holder of the Guinness World Record as the world's tallest dog. His official height was from the floor to his shoulder. The previous holder was another Great Dane, Gibson, who measured , and died in August 2009. During the nomination process, Titan, who suffered from several health conditions, fought off competition from a Newfoundland from North Dakota and another Great Dane, from Arizona. On February 22, 2010 Titan was dethroned as world's tallest dog by Giant George, a Great Dane from Arizona.