The discipline of taxonomy includes two cognitive components, viz., classification and nomenclature. Classification envisages the systematic arrangement of biological entities into taxonomic groups (taxa) based on relatedness of common properties and is facilitated by naming the individual following proper nomenclature as per the international rules. Since the inception of civilization, humans have been classifying every form of life from higher to lower groups of plants and animals. With the dawning of the age of the discovery of microorganisms, taxonomy has been extended to include viruses, viroids, virusoids, and subviral agents such as satellite viruses and prions to facilitate their easy understanding and communication between scientists and researchers. Viruses have drawn attention right from the day of their discovery by Adolf Mayer (1886) in tobacco plants, confirmed as nonbacterial infectious agents by Ivanovsky (1892) and subsequently getting the final name by Beijerinck (1898). Viruses though submicroscopic, and tiny in size, however, have endangered mankind for its survival and continuity of life as is evident from many past and current outbreaks including the pandemic of coronavirus (COVID-19).