| English | Irish |
| Atlantic blue marlin | mairlín gorm Atlantach (Makaira nigricans) |
| banded pitta, blue-tailed pitta | pite bandach (Pitta guajana) |
| blue and red shrimp | séacla gorm agus dearg (Aristeus antennatus) |
| blue antimora | trosc domhainmhara gorm (Antimora rostrata) |
| blue butterfish | searróg ghorm (Stromateus fiatola) |
| blue crab | portán gorm (Callinectes sapidus) |
| blue-green algae | alga gormghlas (Cyanobacteria, Cyanophyceae, Cyanophycota, Cyanophyta) |
| blue-green bacteria | alga gormghlas (Cyanobacteria, Cyanophyceae, Cyanophycota, Cyanophyta) |
| blue grenadier | gránadóir gorm (Macruronus novaezelandiae) |
| blue jack mackerel | bolmán gorm (Trachurus picturatus) |
| blue ling | langa gorm (Molva dypterygia, Molva byrkelange) |
| blue lupin | lúipín caol (Lupinus angustifolius) |
| blue mackerel | ronnach gorm (Scomber australasicus) |
| blue marlin | mairlín gorm Atlantach (Makaira nigricans) |
| blue moki | mócaí gorm (Latridopsis ciliaris) |
| blue mussel | diúilicín (Mytilus edulis) |
| blue runner | bolmán Éigipteach (Caranx crysos, Caranx fusus) |
| blue sea cat | cat mara gorm (Anarhichas denticulatus, Anarhichas latifrons) |
| blue shark | siorc gorm (Prionace glauca) |
| blue shrimp | séacla gorm (Litopenaeus stylirostris, Penaeus stylirostris) |
| blue skate | sciata (Dipturus batis, Raja batis) |
| blue whale | míol mór gorm (Balaenoptera musculus) |
| blue whitefish | iasc geal gorm (Coregonus wartmanni) |
| blue whiting | faoitín gorm (Micromesistius poutassou, Gadus poutassou) |
| little blue macaw | macá Spix (Cyanopsitta spixii) |
| Rueck's blue flycatcher, Rueck's niltava | cuilire gorm Rueck (Cyornis ruckii) |
| Southern blue whiting | faoitín gorm deisceartach (Micromesistius australis) |
