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Virus names in alphabetical order

| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |

O

Species names are in italics. All other virus names are not italicized and their taxonomic status is color-coded.
Click here for color code table.

Virus names are followed by species, genus, subfamily and family name with links to the respective taxonomic list:

O’nyong-nyong virus; (ONNV); ; Alphavirus; ; Togaviridae
Oak-Vale virus; (OVRV); ; unassigned; ; Rhabdoviridae
Oak-Vale virus; (OVRV); Oak-Vale virus; unassigned; ; Rhabdoviridae
Oat blue dwarf virus; (OBDV); ; Marafivirus; ; Tymoviridae
Oat blue dwarf virus; (OBDV); Oat blue dwarf virus; Marafivirus; ; Tymoviridae
Oat chlorotic stunt virus; (OCSV); ; Avenavirus; ; Tombusviridae
Oat chlorotic stunt virus; (OCSV); Oat chlorotic stunt virus; Avenavirus; ; Tombusviridae
Oat golden stripe virus; (OGSV); ; Furovirus; ; unassigned
Oat golden stripe virus; (OGSV); Oat golden stripe virus; Furovirus; ; unassigned
Oat mosaic virus; (OMV); ; Bymovirus; ; Potyviridae
Oat mosaic virus; (OMV); Oat mosaic virus; Bymovirus; ; Potyviridae
Oat necrotic mottle virus; (ONMV); Oat necrotic mottle virus ; Tritimovirus; ; Potyviridae
Oat necrotic mottle virus ; (ONMV); ; Tritimovirus; ; Potyviridae
Oat sterile dwarf virus; (OSDV); ; Fijivirus; ; Reoviridae
Oat sterile dwarf virus; (OSDV); Oat sterile dwarf virus; Fijivirus; ; Reoviridae
Oat striate mosaic virus; (OSMV); ; unassigned; ; Rhabdoviridae
Oat striate mosaic virus; (OSMV); Oat striate mosaic virus; unassigned; ; Rhabdoviridae
Obodhiang virus; (OBOV); ; unassigned; ; Rhabdoviridae
Obodhiang virus; (OBOV); Obodhiang virus; unassigned; ; Rhabdoviridae
Obuda pepper virus; (ObPV); ; Tobamovirus; ; unassigned
Obuda pepper virus; (ObPV); Obuda pepper virus; Tobamovirus; ; unassigned
Oceanside virus; (OCV); Uukuniemi virus; Phlebovirus; ; Bunyaviridae
Ocinara varians NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Ockelbo virus; ; Sindbis virus; Alphavirus; ; Togaviridae
Octopus vulgaris disease virus; ; ; Lymphocystisvirus; ; Iridoviridae
Odocoileus adenovirus 1; (OdAdV-1); Cervive adenovirus; Atadenovirus; ; Adenoviridae
Odontoglossum ringspot virus; (ORSV); ; Tobamovirus; ; unassigned
Odontoglossum ringspot virus; (ORSV); Odontoglossum ringspot virus; Tobamovirus; ; unassigned
Odrenisrou virus; (ODRV); ; Phlebovirus; ; Bunyaviridae
Odrenisrou virus; (ODRV); Odrenisrou virus; Phlebovirus; ; Bunyaviridae
Oedaleus senigalensis entomopoxvirus 'O'; (OSEV); ; Betaentomopoxvirus; Entomopoxvirinae; Poxviridae
Oedaleus senigalensis entomopoxvirus 'O'; (OSEV); Oedaleus senigalensis entomopoxvirus 'O'; Betaentomopoxvirus; Entomopoxvirinae; Poxviridae
Oilseed rape mosaic virus; ; Youcai mosaic virus; Tobamovirus; ; unassigned
Oita virus; (OITAV); ; unassigned; ; Rhabdoviridae
Oita virus; (OITAV); Oita virus; unassigned; ; Rhabdoviridae
Okhotskiy virus; (OKHV); Great Island virus; Orbivirus; ; Reoviridae
Okola virus; (OKOV); ; unassigned; ; Bunyaviridae
Okola virus; (OKOV); Okola virus; unassigned; ; Bunyaviridae
Okra enation virus; ; Cotton leaf curl Gezira virus; Begomovirus; ; Geminiviridae
Okra leaf curl India virus; (OkLCuIV); ; Begomovirus; ; Geminiviridae
Okra leaf curl India virus; (OkLCuIV); Okra leaf curl India virus; Begomovirus; ; Geminiviridae
Okra leaf curl virus; (OkLCuV); ; Begomovirus; ; Geminiviridae
Okra leaf curl virus; (OkLCuV); Okra leaf curl virus; Begomovirus; ; Geminiviridae
Okra leaf curl virus ; ; Okra leaf curl virus; Begomovirus; ; Geminiviridae
Okra leaf curl virus ; ; Okra leaf curl India virus; Begomovirus; ; Geminiviridae
Okra mosaic Mexico virus; (OkMMV); ; Begomovirus; ; Geminiviridae
Okra mosaic Mexico virus; (OkMMV); Okra mosaic Mexico virus; Begomovirus; ; Geminiviridae
Okra mosaic virus; (OkMV); ; Tymovirus; ; Tymoviridae
Okra mosaic virus; (OkMV); Okra mosaic virus; Tymovirus; ; Tymoviridae
Okra yellow vein mosaic virus; (OYVMV); ; Begomovirus; ; Geminiviridae
Okra yellow vein mosaic virus; ; Bhendi yellow vein mosaic virus; Begomovirus; ; Geminiviridae
Okra yellow vein mosaic virus - [201]; (OYVMV-[201]); Okra yellow vein mosaic virus; Begomovirus; ; Geminiviridae
Olesicampe benefactor ichnovirus; (ObIV); ; Ichnovirus; ; Polydnaviridae
Olesicampe benefactor ichnovirus; (ObIV); Olesicampe benefactor ichnovirus; Ichnovirus; ; Polydnaviridae
Olesicampe geniculatae ichnovirus; (OgIV); ; Ichnovirus; ; Polydnaviridae
Olesicampe geniculatae ichnovirus; (OgIV); Olesicampe geniculatae ichnovirus; Ichnovirus; ; Polydnaviridae
Olifantsvlei virus; (OLIV); ; Orthobunyavirus; ; Bunyaviridae
Olifantsvlei virus - SAAAr 5133; (OLIV); Olifantsvlei virus; Orthobunyavirus; ; Bunyaviridae
Olive latent ringspot virus; (OLRSV); ; Nepovirus; ; Comoviridae
Olive latent ringspot virus; (OLRSV); Olive latent ringspot virus; Nepovirus; ; Comoviridae
Olive latent virus 1; (OLV-1); ; Necrovirus; ; Tombusviridae
Olive latent virus 1; (OLV-1); Olive latent virus 1; Necrovirus; ; Tombusviridae
Olive latent virus 2; (OLV-2); ; Oleavirus; ; Bromoviridae
Olive latent virus 2; (OLV-2); Olive latent virus 2; Oleavirus; ; Bromoviridae
Olive leaf yellowing-associated virus; (OLYaV); ; unassigned; ; Closteroviridae
Olive leaf yellowing-associated virus; (OLYaV); Olive leaf yellowing-associated virus; unassigned; ; Closteroviridae
Oliveros virus; (OLVV); ; Arenavirus; ; Arenaviridae
Oliveros virus - RIID 3229; (OLVVRIID3229); Oliveros virus; Arenavirus; ; Arenaviridae
Omo virus; (OMOV); Qalyub virus; Nairovirus; ; Bunyaviridae
Omsk hemorrhagic fever virus; (OHFV); ; Flavivirus; ; Flaviviridae
Omsk hemorrhagic fever virus; (OHFV); Omsk hemorrhagic fever virus; Flavivirus; ; Flaviviridae
Oncorhynchus masou herpesvirus; ; Salmonid herpesvirus 2; unassigned; unassigned; Herpesviridae
Onion mite-borne latent virus; (OMbLV); ; Allexivirus; ; Flexiviridae
Onion mite-borne latent virus; (OMbLV); Onion mite-borne latent virus; Allexivirus; ; Flexiviridae
Onion yellow dwarf virus; (OYDV); ; Potyvirus; ; Potyviridae
Onion yellow dwarf virus; (OYDV); Onion yellow dwarf virus; Potyvirus; ; Potyviridae
Ononis yellow mosaic virus; (OYMV); ; Tymovirus; ; Tymoviridae
Ononis yellow mosaic virus; (OYMV); Ononis yellow mosaic virus; Tymovirus; ; Tymoviridae
O'nyong-nyong virus; (ONNV); O’nyong-nyong virus; Alphavirus; ; Togaviridae
Operophtera bruceata NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Operophtera brumata cypovirus 2; (ObCPV-2); Cypovirus 2; Cypovirus; ; Reoviridae
Operophtera brumata cypovirus 3; (ObCPV-3); Cypovirus 3; Cypovirus; ; Reoviridae
Operophtera brumata entomopoxvirus 'L'; (OBEV); ; Betaentomopoxvirus; Entomopoxvirinae; Poxviridae
Operophtera brumata entomopoxvirus 'L'; (OBEV); Operophtera brumata entomopoxvirus 'L'; Betaentomopoxvirus; Entomopoxvirinae; Poxviridae
Operophtera brumata NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Ophiostoma mitovirus 1a; (OMV1a); ; Mitovirus; ; Narnaviridae
Ophiostoma mitovirus 1a; (OMV1a); Ophiostoma mitovirus 1a; Mitovirus; ; Narnaviridae
Ophiostoma mitovirus 1b; (OMV1b); ; Mitovirus; ; Narnaviridae
Ophiostoma mitovirus 1b; (OMV1b); Ophiostoma mitovirus 1b; Mitovirus; ; Narnaviridae
Ophiostoma mitovirus 2; (OMV2); ; Mitovirus; ; Narnaviridae
Ophiostoma mitovirus 2; (OMV2); Ophiostoma mitovirus 2; Mitovirus; ; Narnaviridae
Ophiostoma mitovirus 3a; (OMV3a); ; Mitovirus; ; Narnaviridae
Ophiostoma mitovirus 3a; (OMV3a); Ophiostoma mitovirus 3a; Mitovirus; ; Narnaviridae
Ophiostoma mitovirus 3b; (OMV3b); ; Mitovirus; ; Narnaviridae
Ophiostoma mitovirus 3b; (OMV3b); Ophiostoma mitovirus 3b; Mitovirus; ; Narnaviridae
Ophiostoma mitovirus 4; (OMV4); ; Mitovirus; ; Narnaviridae
Ophiostoma mitovirus 4; (OMV4); Ophiostoma mitovirus 4; Mitovirus; ; Narnaviridae
Ophiostoma mitovirus 5; (OMV5); ; Mitovirus; ; Narnaviridae
Ophiostoma mitovirus 5; (OMV5); Ophiostoma mitovirus 5; Mitovirus; ; Narnaviridae
Ophiostoma mitovirus 6; (OMV6); ; Mitovirus; ; Narnaviridae
Ophiostoma mitovirus 6; (OMV6); Ophiostoma mitovirus 6; Mitovirus; ; Narnaviridae
Opisina arenosella NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Opisthograptis luteolata NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Opogonia iridescent virus; ; Invertebrate iridescent virus 9; Iridovirus; ; Iridoviridae
Oporinia autumnata NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Opsiphanes cassina NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Oraesia emarginata NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Oran virus; (ORNV); Andes virus; Hantavirus; ; Bunyaviridae
Orangutan herpesvirus; ; Pongine herpesvirus 2; Lymphocryptovirus; Gammaherpesvirinae; Herpesviridae
Orchid fleck virus; ; ; unassigned; ; unassigned
Orf virus; (ORFV); ; Parapoxvirus; Chordopoxvirinae; Poxviridae
Orf virus; (ORFV); Orf virus; Parapoxvirus; Chordopoxvirinae; Poxviridae
Orgyia anartoides NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Orgyia antiqua NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Orgyia australis NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Orgyia badia NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Orgyia gonostigma NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Orgyia leucostigma NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Orgyia postica NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Orgyia pseudosugata cypovirus 5; (DpCPV-5); Cypovirus 5; Cypovirus; ; Reoviridae
Orgyia pseudotsugata MNPV; (OpMNPV); Orgyia pseudotsugata multiple nucleopolyhedrovirus; Nucleopolyhedrovirus; ; Baculoviridae
Orgyia pseudotsugata multiple nucleopolyhedrovirus; (OpMNPV); ; Nucleopolyhedrovirus; ; Baculoviridae
Orgyia pseudotsugata single nucleopolyhedrovirus; (OpSNPV); ; Nucleopolyhedrovirus; ; Baculoviridae
Orgyia pseudotsugata SNPV; (OpSNPV); Orgyia pseudotsugata single nucleopolyhedrovirus; Nucleopolyhedrovirus; ; Baculoviridae
Orgyia turbata NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Orgyia vetusta NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Oriboca virus; (ORIV); ; Orthobunyavirus; ; Bunyaviridae
Oriboca virus - BeAn 17; (ORIV); Oriboca virus; Orthobunyavirus; ; Bunyaviridae
Oriximina virus; (ORXV); Chandiru virus; Phlebovirus; ; Bunyaviridae
Ornithogalum mosaic virus; (OrMV); ; Potyvirus; ; Potyviridae
Ornithogalum mosaic virus; (OrMV); Ornithogalum mosaic virus; Potyvirus; ; Potyviridae
Ornithogalum virus 2; (OrV2); ; Potyvirus; ; Potyviridae
Ornithogalum virus 2; (OrV2); Ornithogalum virus 2; Potyvirus; ; Potyviridae
Ornithogalum virus 3; (OrV3); ; Potyvirus; ; Potyviridae
Ornithogalum virus 3; (OrV3); Ornithogalum virus 3; Potyvirus; ; Potyviridae
Oropouche virus; (OROV); ; Orthobunyavirus; ; Bunyaviridae
Oropouche virus; (OROV); Oropouche virus; Orthobunyavirus; ; Bunyaviridae
Orthosia hibisci NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Orthosia incerta NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Orungo virus; (ORUV); ; Orbivirus; ; Reoviridae
Orungo virus 1; (ORUV-1); Orungo virus; Orbivirus; ; Reoviridae
Orungo virus 2; (ORUV-2); Orungo virus; Orbivirus; ; Reoviridae
Orungo virus 3; (ORUV-3); Orungo virus; Orbivirus; ; Reoviridae
Orungo virus 4; (ORUV-4); Orungo virus; Orbivirus; ; Reoviridae
Oryctes rhinoceros virus; ; ; unassigned; ; unassigned
Oryza australiensis RIRE1 virus; (OauRirV); ; Pseudovirus; ; Pseudoviridae
Oryza australiensis RIRE1 virus; (OauRirV); Oryza australiensis RIRE1 virus; Pseudovirus; ; Pseudoviridae
Oryza longistaminata Retrofit virus; (OloRetV); ; Pseudovirus; ; Pseudoviridae
Oryza longistaminata Retrofit virus; (OloRetV); Oryza longistaminata Retrofit virus; Pseudovirus; ; Pseudoviridae
Oryza rufipogon endornavirus; (ORV); ; Endornavirus; ; unassigned
Oryza rufipogon virus; (ORV); Oryza rufipogon endornavirus; Endornavirus; ; unassigned
Oryza sativa endornavirus; (OSV); ; Endornavirus; ; unassigned
Oryza sativa virus; (OSV); Oryza sativa endornavirus; Endornavirus; ; unassigned
Ossa virus -BT 1820; (OSSAV); Caraparu virus; Orthobunyavirus; ; Bunyaviridae
Ostreid herpesvirus 1; (OsHV-1); ; unassigned; unassigned; Herpesviridae
Ostreid herpesvirus 1; (OsHV-1); Ostreid herpesvirus 1; unassigned; unassigned; Herpesviridae
Ostrinia nubilalis NPV; ; ; Nucleopolyhedrovirus ; ; Baculoviridae
Ouango virus; (OUAV); ; unassigned; ; Rhabdoviridae
Ouango virus; (OUAV); Ouango virus; unassigned; ; Rhabdoviridae
Oubi virus; (OUBIV); Olifantsvlei virus; Orthobunyavirus; ; Bunyaviridae
Ourem virus; (OURV); Changuinola virus; Orbivirus; ; Reoviridae
Ourmia melon virus; (OUMV); ; Ourmiavirus; ; unassigned
Ourmia melon virus; (OUMV); Ourmia melon virus; Ourmiavirus; ; unassigned
Ovine adeno-associated virus; (OAAV); ; Dependovirus; Parvovirinae; Parvoviridae
Ovine adeno-associated virus; (OAAV); Ovine adeno-associated virus; Dependovirus; Parvovirinae; Parvoviridae
Ovine adenovirus 1; (OAdV-1); Ovine adenovirus B; Mastadenovirus; ; Adenoviridae
Ovine adenovirus 2; (OAdV-2); Ovine adenovirus A; Mastadenovirus; ; Adenoviridae
Ovine adenovirus 3; (OAdV-3); Ovine adenovirus A; Mastadenovirus; ; Adenoviridae
Ovine adenovirus 4; (OAdV-4); Ovine adenovirus A; Mastadenovirus; ; Adenoviridae
Ovine adenovirus 5; (OAdV-5); Ovine adenovirus A; Mastadenovirus; ; Adenoviridae
Ovine adenovirus 6; (OAdV-6); Ovine adenovirus C; Mastadenovirus; ; Adenoviridae
Ovine adenovirus 7; (OAdV-7); Ovine adenovirus D; Atadenovirus; ; Adenoviridae
Ovine adenovirus A; (OAdV-A); ; Mastadenovirus; ; Adenoviridae
Ovine adenovirus B; (OAdV-B); ; Mastadenovirus; ; Adenoviridae
Ovine adenovirus C; (OAdV-C); ; Mastadenovirus; ; Adenoviridae
Ovine adenovirus D; (OAdV-D); ; Atadenovirus; ; Adenoviridae
Ovine adenovirus isolate 287; (OAV-287); Ovine adenovirus D; Atadenovirus; ; Adenoviridae
Ovine astrovirus; (OAstV); ; Mamastrovirus; ; Astroviridae
Ovine astrovirus 1; (OAstV-1); Ovine astrovirus; Mamastrovirus; ; Astroviridae
Ovine herpesvirus 1; (OvHV-1); ; unassigned; unassigned; Herpesviridae
Ovine herpesvirus 1; (OvHV-1); Ovine herpesvirus 1; unassigned; unassigned; Herpesviridae
Ovine herpesvirus 2; (OvHV-2); ; Rhadinovirus; Gammaherpesvirinae; Herpesviridae
Ovine herpesvirus 2; (OvHV-2); Ovine herpesvirus 2; Rhadinovirus; Gammaherpesvirinae; Herpesviridae
Ovine papillomavirus – 1; (OVPV-1); ; Deltapapillomavirus; ; Papillomaviridae
Ovine papillomavirus 1; (OVPV-1); <