The term “catgut” refers to a type of cord or string that is traditionally made from the intestines of animals, particularly sheep or goats, although the name might conjure images of cats. Catgut has been used historically for various purposes, including as strings for musical instruments (like violins and harps), as surgical sutures, and in other applications where a strong, flexible material is required. Despite its name, catgut does not actually come from cats.