Limacology, from Ancient Greek ???u?? (leîmax), meaning "slug", and ????? (lógos), meaning "study", is the branch of zoology which deals with slugs, i.e. shell-less gastropod mollusks. A person that studies limacology is referred to as a limacologist.

However, slugs are an extremely polyphyletic group, thus "limacology" is not a taxonomically accurate term,