See more: http://pictures-of-cats.org/savannah-cat.html — Tallest Pet Cat – Guinness World Records – official – she was bred and raised at A1 Savannahs, the premier Savannah cat breeder in the world. She is called MAGIC, an apt name for such a stunning cat. Is this the biggest domestic cat? Update 22-9-09: Guinness Book of Records has I am told declared her the tallest domestic cat at 43.43 centimeters (17.1 inches). More to come….