According to Official Guinness Records,
The longest fur on a rabbit is 36.5 cm (14.37 in) and belongs to Franchesca, owned by Betty Chu (USA), as measured in Morgan Hill, California, USA, on 17 August 2014.Franchesca’s proud owner is Dr Betty Chu (USA);she’s an expert on the English Angora rabbit, which is often mistaken for a Pekingese dog and needs a great deal of care… and a lot of grooming of that dense, silky fur.Read more: Brand new record-breaking animals steal the show in Guinness World Records 2016
For a complete list of 2014 records, please visit 2014 Guinness Records in United States.