According to Official Guinness Records,
The largest living cat is Hercules, an adult male liger (lion x tigress hybrid) currently housed at Myrtle Beach Safari, a wildlife reserve in South Carolina, USA. In total length, he measures 3.33 m (131 in), stands 1.25 m (49 in) at the shoulder, and weighs 418.2 kg (922 lb). Ligers are generally larger than their two parental species. In contrast, tigons, hybrids resulting from the reciprocal cross (tiger x lioness), are often smaller. He is pictured here with Moksha Bybee, an animal trainer from the wildlife reserve. Slightly taller but lighter in weight is Hercules's brother, Sinbad. Ligers are generally larger than their two parental species. In contrast, tigons, hybrids resulting from the reciprocal cross (tiger x lioness), are often smaller.
For a complete list of 2013 records, please visit 2013 Guinness Records in United States.