| English | French |
| American blue jay | geai bleu d'Amérique (Cyanocitta cristata) |
| blue-bellied roller | rollier à ventre bleu (Coracias cyanogaster) |
| blue-bill | astrild à gros bec bleu (Spermophaga haematina) |
| blue-billed fire finch | sénégali à bec bleu (Lagonosticta rubricata) |
| blue bird of paradise | paradisier de Rodolphe (Paradisaea rudolphi) |
| blue bird-of-paradise | paradisier de Rodolphe (Paradisaea rudolphi) |
| blue-bottle fly | mouche bleue de la viande (Calliphora vomitoria) |
| blue-breasted cordonbleu | cordon bleu d'Angola (Uraeginthus angolensis) |
| blue-brested waxbill | cordon bleu d'Angola (Uraeginthus angolensis) |
| blue-capped cordonbleu | astrild à tête bleue (Uraeginthus cyanocephalus) |
| blue cattle louse | pou du veau (Linognathus vituli) |
| blue-cheeked bee-eater | guêpier de perse (Merops persicus) |
| blue corals | hélioporidés (Helioporidae) |
| blue crabs | callinectes (Callinectes) |
| blue-crowned motmot | momot (Momotus momota, Momotus momota coeruliceps) |
| blue-faced parrotfinch | diamant tricolore de Kittlitz (Erythrura trichroa) |
| blue hare | lièvre changeant (Lepus timidus) |
| blue hare | blièvre blanc (Lepus timidus) |
| blue hare | lièvre variable (Lepus timidus) |
| blue hare | blanchon (Lepus timidus) |
| blue-headed wagtail | bergeronette printanière (Motacilla flava, Motacilla flava flava) |
| blue-headed waxbill | astrild à tête bleue (Uraeginthus cyanocephalus) |
| blue jay | geai bleu d'Amérique (Cyanocitta cristata) |
| blue ling | lingue bleue (Molva dypterygia, Molva byrkelange) |
| blue magpie | pirolle de la Chine (Urocissa erythrorhyncha) |
| blue monkey | cercopithèque à diadème (Cercopithecus mitis) |
| blue-mouth | sébaste-chèvre (Scorpaena dactyloptera) |
| blue mussels | moules (Mytilidae) |
| blue rock thrush | merle bleu (Monticola solitarius, (Monticola solitarius solitarius)) |
| blue shark | peau bleue (Prionace glauca, Carcharias glaucus) |
| blue shark | requin bleu (Prionace glauca, Carcharias glaucus) |
| blue sheep | mouton bleu (Pseudois nayaur) |
| blue sheep | bharal (Pseudois nayaur) |
| blue-throated barbet | barbu à gorge bleue (Megalaima asiatica) |
| blue vanga | artamie azurée (Cyanolanius madagascarinus, Leptopterus madagascarinus) |
| blue whaler | peau bleue (Prionace glauca, Carcharias glaucus) |
| blue whaler | requin bleu (Prionace glauca, Carcharias glaucus) |
| blue-white dolphin | dauphin bleu-blanc (Stenella caeruleoalba) |
| blue whiting | poutassou (Micromesistius poutassou, Gadus poutassou) |
| blue whiting | merlan bleu (Micromesistius poutassou, Gadus poutassou) |
| blue wildebeest | gnou bleu (Connochaetes taurinus taurinus) |
| blue-winged fruit-sucker | verdin à barbe bleue (Chloropsis hardwickii) |
| blue-winged teal | sarcelle soucrourou (Anas discors) |
| Ceylon blue magpie | pie bleue ornée (Urocissa ornata) |
| Chinese blue-pie | pirolle de la Chine (Urocissa erythrorhyncha) |
| Chinese blue whistling thrush | grive siffleuse bleue (Myiophoneus caeruleus) |
| fairy blue wren | roitelet bleu (Malurus cyaneus) |
| greater blue-eared glossy-starling | merle métallique à oreilles bleues (Lamprotornis chalybaeus) |
| large blue | alcon (Maculinea arion) |
| steel-blue whydah | veuve métallique (Vidua hypocherina) |
| yellow-billed blue-pie | pirolle à bec jaune (Urocissa flavirostris) |
