Deutsch: Gattung (Biologie) / Español: Gênero (biología) / Português: Gênero (biologia) / Français: Genre (biologie) / Italiano: Genere (tassonomia)

In biology, a genus (plural: genera) is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia. Genera and higher taxonomic levels such as families are used in biodiversity studies, particularly in fossil studies since species cannot always be confidently identified and genera and families typically have longer stratigraphic ranges than species.

In the industrial and industry context, "genus" is a term used in the field of taxonomy and biology to refer to a classification level that is higher than species but lower than family. A genus is a group of related species that have similar characteristics and are believed to have evolved from a common ancestor.