| English | Swedish |
| blue-back herring | blå staksill (Alosa aestivalis) |
| blue-back shad | blå staksill (Alosa aestivalis) |
| blue box | blå låda |
| blue crab | blåkrabba (Callinectes sapidus) |
| blue flying fish | flygfisk (Exocoetus volitans) |
| blue jack mackerel | blå taggmakrill (Trachurus picturatus) |
| blue ling | birkelånga (Molva dypterygia, molva byrkelange) |
| blue ling | blålånga (Molva dypterygia, molva byrkelange) |
| blue mackerel | stillahavsmakrill (Scomber australasicus) |
| blue-mouth | blåkäft (Helicolenus dactylopterus) |
| blue mussel | blåmussla (Mytilus edulis) |
| blue point oyster | amerikanskt ostron (Crassostrea virginica) |
| blue runner | blålöpare (Caranx crysos, Caranx fusus) |
| blue sea cat | blå havkatt (Anarhichas denticulatus, anarhichas latifrons) |
| blue shark | blåhaj (Prionace glauca) |
| blue-spotted seabream | blåfläckig rödbraxen (Pagrus caeruleostictus, Sparus caeruleostictus, Sparus ehrenbergii) |
| blue whale | blåval (Balaenoptera musculus) |
| blue whaler | blåhaj (Carcharhinus glaucus, Carcharias glaucus, Prionace glauca, Squalus glaucus) |
| blue whitefish | azursik (Coregonus wartmanni) |
| blue whiting | blåvitling (Micromesistius australis, Micromesistius poutassou, gadus poutassou) |
| blue whiting | kolmule (Micromesistius australis, Micromesistius poutassou, gadus poutassou) |
| great blue shark | blåhaj (Carcharhinus glaucus, Carcharias glaucus, Prionace glauca, Squalus glaucus) |
| Southern blue whiting | sydlig blåvitling (Micromesistius australis) |
