| English | Latin |
| American red gum | Liquidambar styraciflua |
| Argentine red shrimp | Pleoticus muelleri |
| Bactrian red deer | Cervus elaphus bactrianus |
| blood-red geranium | Geranium sanguineum |
| blue and red shrimp | Aristeus antennatus |
| Brown needle blight:pine, Needle blight:pine, Red band needle blight:pine, Blight:pine | Scirrhia pini |
| Brown needle blight:pine, Needle blight:pine, Red band needle blight:pine, Blight:pine | Dothistroma septospora |
| Brown needle blight:pine, Needle blight:pine, Red band needle blight:pine, Blight:pine | Dothistroma pini |
| Brown needle blight:pine, Needle blight:pine, Red band needle blight:pine, Blight:pine | Cytosporina septospora |
| California red scale | Aonidiella aurantii |
| Central American red brocket | Mazama temama cerasina |
| Central American red brocket | Mazama temama |
| common red backed mouse | Clethrionomys glareolus |
| common red backed mouse | Evotomys glareolus |
| common red spidermite | Tetranychus urticae |
| dog red mange mite | Demodex canis |
| european red deer | Cervus elaphus |
| european red mite | Tetranychus ulmi |
| european red mite | Paratetranychus pilosus |
| european red mite | Panonychus ulmi |
| european red mite | Metatetranychus ulmi |
| european red mite | Oligonychus ulmi |
| european red mite | Metatetranychus pilosus |
| Florida red scale | Chrysomphalus ficus |
| Florida red scale | Chrysomphalus aonidum |
| fruit tree red spider mite | Metatetranychus ulmi |
| fruit tree red spider mite | Oligonychus ulmi |
| fruit tree red spider mite | Paratetranychus pilosus |
| fruit tree red spider mite | Panonychus ulmi |
| fruit tree red spider mite | Tetranychus ulmi |
| fruit tree red spider mite | Metatetranychus pilosus |
| greenhouse red spider mite | Tetranychus urticae |
| hop red spider mite | Tetranychus urticae |
| Kirk's red colobus | Colobus badius kirkii |
| little red flying fox | Pteropus scapulatus |
| Miss Waldron's red colobus | Procolobus badius waldroni |
| Moussier's red-start | Phoenicurus moussieri |
| New Caledonian red-crowned parakeet | Cyanoramphus saisseti |
| New Zealand red-crowned parakeet | Cyanoramphus novaezelandiae |
| red admiral | Vanessa atalanta |
| red and green macaw | Ara ambigua |
| red and pink corals | Coralliidae |
| red ant | Formica rufa |
| red-backed squirrel monkey | Saimiri oerstedii |
| red bait | Pyura stolonifera |
| red band disease | Cytosporina septospora |
| red band disease | Dothistroma septospora |
| red band disease | Dothistroma pini |
| red band disease | Scirrhia pini |
| red bandfish | Cepolidae |
| red bartsia | Odontites verna |
| red-berried elder | Sambucus racemosa |
| red-billed buffalo weaver | Bubalornis niger |
| red-billed firefinch | lagonosticta senegala |
| red-billed hornbill | tockus erythrorhynchus |
| red-billed oxpecker | buphagus erythrorhynchus |
| red-billed teal | Anas erythrorhyncha |
| red-billed toucan | Pteroglossus tucanus |
| red-bodied swallowtail | Pachliopta polydorus |
| red-breasted flycatcher | Muscicapa parva |
| red-breasted nuthatch | Sitta canadensis canadensis |
| red-browed finch | Neochmia temporalis |
| red campion | Silene dioica |
| red-capped lark | Calandrella cineria |
| red-capped lark | Calandrella brachydactyla |
| red-cheeked cordon-bleu | uraeginthus bengalus |
| red-collared whydah | niobella ardeus |
| red-collared whydah | Niobella ardeus |
| red-collared whydaw | Euplectes ardens |
| red-collared whydaw | Coliuspasser ardens |
| red colobus monkey | Procolobus kirkii |
| red coral | Corallium rubrum |
| red-cracked bolete | Xerocomus chrysenteron |
| red-cracked bolete | Boletus chrysenteron |
| red-crested pochard | netta rufina |
| red-crowned Amazon parrot | Amazona rhodocorytha |
| red-crowned parakeet | Cyanoramphus saisseti |
| red currant aphid | Capitophorus ribis |
| red currant aphid | Cryptomyzus ribis |
| red currant aphid | Aphis ribis |
| red currant blister aphid | Aphis ribis |
| red currant blister aphid | Capitophorus ribis |
| red currant blister aphid | Cryptomyzus ribis |
| red deer | Cervus elaphus affinis |
| red deer | Cervus elaphus hanglu |
| red-eared finch | Emblema oculta |
| red-eared terrapin | Chrysemys scripta elegans |
| red edge cordyline | Cordyline terminalis "red edge" |
| red-edged banana plant | Musa ensete rubra |
| red-eye round herring | Etrumeus teres |
| red-eyed dove | streptopelia semitorquata |
| red fescue | Festuca rubra |
| red fire ant | Solenopsis saevissima |
| red fire ant | Solenopsis invicta |
| red-flanked bleu-tail | Tarsiger cyanurus |
| red flowered cotton | Gossypium arboreum |
| red flowered cotton | Gossypium spp. |
| red-fronted Amazon parrot | Amazona vittata |
| red-fronted parakeet | Cyanoramphus novaezelandiae |
| red goosefoot | Chenopodium rubrum |
| red grouse | gopus lagopus scoticus |
| red grouse | Lagopus lagopus hibernicus |
| red gum | Liquidambar styraciflua |
| red harvester ant | Pogonomyrmex barbatus |
| red-headed parrot | poicephalus gulielmi |
| red-headed weaver | anaplectes rubriceps |
| red-headed weaver | Anaplectes rubriceps |
| red hemp-nettle | Galeopsis ladanum |
| red herring bone plant | Maranta leuconeura erythrophylla |
| red hibiscus | Hibiscus archeri |
| red-imported fire ant | Solenopsis saevissima |
| red-imported fire ant | Solenopsis invicta |
| red jackal | Canis simensis |
| red jungle fowl | Gallus gallus |
| red land crab | Gecarcoidea natalis |
| red leaf beetle | Rhaphidopalpa foveicollis |
| red leaf beetle | Aulacophora foveicollis |
| red lechwe | Kobus leche |
| red-marked tentmaker | Clostera apicalis |
| red melon beetle | Aulacophora foveicollis |
| red melon beetle | Rhaphidopalpa foveicollis |
| red mite | Panonychus ulmi |
| red mite | Paratetranychus pilosus |
| red mite | Tetranychus ulmi |
| red mite | Oligonychus ulmi |
| red mite | Metatetranychus ulmi |
| red mite | Metatetranychus pilosus |
| red mullets | Mullus spp. |
| red mullets | Mullidae |
| red-necked stint | Calidris ruficollis |
| red pandora | Pagellus bellottii |
| red pepper mite | Pygmephorus spp., Pediculoides stercoricola |
| red periwinkle | Vinca rosea |
| red periwinkle | Lochnera rosea |
| red periwinkle | Catharanthus roseus |
| red pine cone beetle | Conophthorus resinosae |
| red pine needleminer | Coleotechnites resinosae |
| red pine shoot moth | Dioryctria resinosella |
| red porgy | Sparus pagrus |
| red pumpkin beetle | Aulacophora foveicollis |
| red pumpkin beetle | Rhaphidopalpa foveicollis |
| red rattle | Pedicularis palustris |
| red sea squirt | Pyura chilensis |
| Red Sea swallow | Hirundo perdita |
| Red sea warbler | Sylvia leucomelaena |
| red seabream | Pagellus centrodontus |
| red snake-bark maple | Acer capillipes |
| red-spectacled Amazon parrot | Amazona pretrei pretrei |
| red spider | Panonychus ulmi |
| red spider | Paratetranychus pilosus |
| red spider | Metatetranychus ulmi |
| red spider | Oligonychus ulmi |
| red spider | Metatetranychus pilosus |
| red spider | Tetranychus ulmi |
| red spider monkey | Ateles geoffroyi panamensis |
| red-spotted bluethroat | Luscinia svecica svecica |
| red spotted scale | Chrysomphalus ficus |
| red spotted scale | Chrysomphalus aonidum |
| red-spotted shrimp | Penaeus brasiliensis |
| red swamp crawfish | Procambarus clarki |
| red swamp crawfish | Procambarus clarkii |
| red tail moth | Calliteara pudibunda |
| red tail moth | Dasychira pudibunda |
| red tail moth | Olene pudibunda |
| red-tailed greenbul | Criniger calurus |
| red-throated diver | olymbus stellatus |
| red valerian | Centranthus ruber |
| red-wattled plover | Hoplopterus indicus |
| red-winged pine beetle | Dendroctonus obesus |
| Tana River red colobus | Colobus badius rufomitratus |
| Tomato bacterial spot, Pepper bacterial spot, Red pepper leaf spot, Tomato leaf spot, Tomato stem canker | Xanthomonas campestris pv. vesicatoria |
| Tomato bacterial spot, Pepper bacterial spot, Red pepper leaf spot, Tomato leaf spot, Tomato stem canker | Xanthomonas vesicatoria |
| Tomato bacterial spot, Pepper bacterial spot, Red pepper leaf spot, Tomato leaf spot, Tomato stem canker | Pseudomonas vesicatoria |
| Turkey red | Rubia tinctorum |
| Usa:red-throated loon | olymbus stellatus |
| Usa:red-throated loon | Gavia stellata |
| Usa: red-wacked sandpiper | Calidris alpina |
| western red cedar | Thuja plicata |
| Western red cedar | Libocedrus decurrens |
| Zanzibar red colobus | Colobus badius kirkii |
