This is a list of fish found in and around Great Britain, in both fresh water (lakes, rivers, streams and man-made pools) and salt water. This list includes species that are native to Great Britain, as well as those which have been introduced from other countries.
Agnatha - jawless fish
Myxini - hagfish
Myxinidae - hagfish Atlantic hagfish, Myxine glutinosa White-headed hagfish, Myxine ios
Petromyzontiformes - lampreys
Petromyzontidae - northern lampreys River lamprey, Lampetra fluviatilis Brook lamprey, Lampetra planeri Sea lamprey, Petromyzon marinus
Chondrichthyes - cartilaginous fish
Chimaeriformes - ratfish
Chimaeridae - short-nosed chimaeras Ratfish, Chimaera monstrosa Opal chimaera, Chimaera opalescens Smalleyed rabbitfish, Hydrolagus affinis Large-eyed rabbitfish, Hydrolagus mirabilis
Rhinochimaeridae - long-nosed chimaeras Narrownose chimaera, Harriotta raleighana Broadnose chimaera, Rhinochimaera atlantica
Hexanchiformes - cow sharks and frilled sharks
Chlamydoselachidae - frilled sharks Frilled shark, Chlamydoselachus anguineus
Hexanchidae - cow sharks Sharpnose sevengill shark, Heptranchias perlo Bluntnose sixgill shark, Hexanchus griseus
Squaliformes - dogfish sharks
Squalidae - true dogfish Spurdog, Squalus acanthias
Echinorhinidae - bramble sharks Bramble shark, Echinorhinus brucus
Dalatiidae - kitefin sharks Kitefin shark, Dalatias licha
Centrophoridae - gulper sharks Leafscale gulper shark, Centrophorus squamosus Birdbeak dogfish, Deania calcia
Etmopteridae - lantern sharks Black dogfish, Centroscyllium fabricii Great lanternshark, Etmopterus princeps Velvet belly lanternshark, Etmopterus spinax
Oxynotidae - rough sharks Angular roughshark, Oxynotus centrina Sailfin roughshark, Oxynotus paradoxus
Somniosidae - sleeper sharks Portuguese dogfish, Centroscymnus coelolepis Longnose velvet dogfish, Centroselachus crepidater Smallmouth velvet dogfish, Scymnodon obscurus Knifetooth dogfish, Scymnodon ringens Greenland shark, Somniosus microcephalus Velvet dogfish, Zameus squamulosus
Lamniformes - mackerel sharks
Cetorhinidae - basking sharks Basking shark, Cetorhinus maximus
Lamnidae - mackerel sharks Great white shark, Carcharodon carcharias Shortfin mako shark, Isurus oxyrinchus Porbeagle, Lamna nasus
Alopiidae - thresher sharks Thresher shark, Alopias vulpinus
Carchariniformes - ground sharks
Scyliorhinidae - catsharks Iceland catshark, Apristurus laurussonii Ghost catshark, Apristurus manis Black roughscale catshark, Apristurus melanoasper Blackmouth catshark, Galeus melastomus Lesser spotted dogfish, Scyliorhinus canicula Greater spotted dogfish, Scyliorhinus stellaris
Carcharhinidae - requiem sharks Copper shark, Carcharinus brachyurus Blue shark, Prionace glauca
Pseudotriakidae - false catsharks False catshark, Pseudotriakis microdon
Sphyrnidae - hammerheads Smooth hammerhead, Sphyrna zygaena
Triakidae - houndsharks Tope, Galeorhinus galeus Starry smooth-hound, Mustelus asterias Common smooth-hound, Mustelus mustelus
Squatiniformes - angel sharks
Squatinidae - angel sharks Angel shark, Squatina squatina
Rajiformes - skates and rays
Rajidae - skates Arctic skate, Amblyraja hyperborea Thorny skate, Amblyraja radiata Spinetail ray, Bathyraja spinicauda Blue skate, Dipturus batis Flapper skate, Dipturus intermedius Norwegian skate, Dipturus nidarosiensis Long-nosed skate, Dipturus oxyrinchus Sandy ray, Leucoraja circularis Shagreen ray, Leucoraja fullonica Cuckoo ray, Leucoraja naevus Blue ray, Neoraja caerulea Blonde ray, Raja brachyura Thornback ray, Raja clavata Smalleyed ray, Raja microocellata Spotted ray, Raja montagui Undulate ray/painted ray, Raja undulata Deepwater ray, Rajella bathyphila Bigelow's ray, Rajella bigelowi Round ray, Rajella fyllae Sailray, Rajella lintea Bottlenose skate, Rostroraja alba
Myliobatiformes - stingrays
Dasyatidae - whiptail stingrays Common stingray, Dasyatis pastinaca Pelagic stingray, Pteroplatytrygon violacea
Myliobatidae - eagle rays Devil fish, Mobula mobular Common eagle ray, Myliobatis aquila
Torpediniformes - electric rays
Torpedinidae - torpedo rays Marbled electric ray, Torpedo marmorata Atlantic torpedo, Torpedo nobiliana
Osteichthyes - bony fish
Acipenseriformes - sturgeon
Acipenseridae - sturgeon Atlantic sturgeon, Acipenser oxyrinchus (extinct in British waters) European sea sturgeon, Acipenser sturio
Anguilliformes - true eels
Anguillidae - freshwater eels European eel, Anguilla anguilla
Muraenidae - morays Mediterranean moray, Muraena helena
Congridae - congers Conger eel, Conger conger
Nettastomatidae - witch eels Whipsnout sorcerer, Venefica proboscidea
Nemichthyidae - snipe eels Avocet snipe eel, Avocettina infans Slender snipe eel, Nemichthys scolopaceus
Synaphobranchidae - cutthroat eels Deepwater arrowtooth eel, Histiobranchus bathybius Robins's cutthroat eel, Ilyophis arx Saldanha's cutthroat eel, Ilyophis blachei Muddy arrowtooth eel, Ilyophis brunneus Kaup's arrowtooth eel, Synaphobranchus kaupii
Notacanthiformes - spiny eels
Halosauridae - halosaurs Abyssal halosaur, Halosauropsis macrochir Johnson's halosaur, Halosaurus johnsonianus
Notacanthidae - spiny eels Shortfin spiny eel, Notacanthus bonaparte Spiny eel, Notacanthus chemnitzii Longnose tapirfish, Polyacanthonotus challengeri Smallmouth spiny eel, Polyacanthonotus rissoanus
Saccopharyngiformes - gulper eels
Saccopharyngidae - gulper eels Gulper eel, Saccopharynx ampullaceus
Eurypharyngidae - pelican eels Pelican eel, Eurypharynx pelecanoides
Clupeiformes - herring
Clupeidae - true herrings Allis shad, Alosa alosa Twaite shad, Alosa fallax Atlantic herring, Clupea harengus European pilchard, Sardina pilchardus Sprat, Sprattus sprattus
Engraulidae - anchovies European anchovy, Engraulis encrasicolus
Cypriniformes - carp and allies
Cyprinidae - carp, minnows and barbs Common bream/bronze bream/skimmer bream, Abramis brama Bleak, Alburnus alburnus Asp, Aspius aspius (introduced) Barbel, Barbus barbus Silver bream, Blicca bjoerkna Goldfish, Carassius auratus (introduced) Crucian carp, Carassius carassius / Carassius cuvieri Grass carp, Ctenopharygodon idella (introduced) Common carp/mirror carp/leather carp/koi, Cyprinus carpio (introduced) Gudgeon, Gobio gobio Silver carp, Hypophthalmichthys molitrix (introduced) Bighead carp, Hypophthalmichthys nobilis (introduced) Sunbleak, Leucaspius delineatus (introduced) Orfe, Leuciscus idus (introduced) Common dace, Leuciscus leuciscus Eurasian minnow, Phoxinus phoxinus Fathead minnow, Pimephales promelas (introduced) Topmouth gudgeon, Pseudorasbora parva (introduced) European bitterling, Rhodeus amarus (introduced) Amur bitterling, Rhodeus sericeus (introduced) Roach, Rutilus rutilus Common rudd, Scardinius erythrophthalmus Chub, Squalius cephalus Tench, Tinca tinca
Catostomidae - suckers White sucker, Catostomus commersonii (introduced)
Cobitidae - true loaches Spined loach, Cobitis taenia European weatherfish, Misgurnus fossilis (introduced)
Nemacheilidae - stone loaches Stone loach, Nemacheilus barbatulus
Siluriformes - catfish
Siluridae - Eurasian catfish Wels catfish, Silurus glanis (introduced)
Ictaluridae - bullhead catfish Black bullhead, Ameiurus melas (introduced) Brown bullhead, Ameiurus nebulosus (introduced) Channel catfish, Ictalurus punctatus (introduced)
Loricariidae - armoured catfish Suckermouth catfish, Hypostomus plecostomus (introduced)
Esociformes - pike
Esocidae - pike Northern pike, Esox lucius
Osmeriformes - smelt
Osmeridae - smelt Capelin, Mallotus villosus European smelt, Osmerus eperlanus
Argentiniformes - argentines and slickheads
Alepocephalidae - slickheads Baird's slickhead, Alepocephalus bairdii Risso's smooth-head, Alepocephalus rostratus Longfin smooth-head, Conocara macropterum Elongate smooth-head, Conocara microlepis Murray's smooth-head, Conocara murrayi Salmon smooth-head, Conocara salmoneum Blackhead salmon, Narcetes stomias Abyssal smooth-head, Rinoctes nasutus Softskin smooth-head, Rouleina attrita Madeiran smooth-head, Rouleina maderensis Bluntsnout smooth-head, Xenodermichthys copei
Leptochilichthyidae - longjaw smooth-heads Agassiz' smooth-head, Leptochilichthys agassizii
Platytroctidae - tubeshoulders Bighead searsid, Holtbyrnia anomala Maul's searsid, Maulisia mauli Multipore searsid, Normichthys operosus Schnakenbeck's searsid, Sagamichthys schnakenbecki Koefoed's searsid, Searsia koefoedi
Argentinidae - argentines Greater argentine, Argentina silus Common argentine, Argentina sphyracna
Microstomatidae - pencil smelts Slender argentine, Microstoma microstoma Greenland argentine, Nansenia groenlandica Mediterranean large-eyed argentine, Nansenia oblita
Bathylagidae - deep-sea smelt Goiter blacksmelt, Bathylagus euryops
Opisthoproctidae - barrel-eyes Spookfish, Dolichopteryx rostrata Barrel-eye, Opisthoproctus soleatus
Salmoniformes - salmon and trout
Salmonidae - salmon and trout European cisco, Coregonus albula Arctic cisco, Coregonus autumnalis Lake whitefish, Coregonus clupeaformis (introduced) Powan, Coregonus clupeioides European whitefish, Coregonus lavaretus Houting, Coregonus oxyrinchus (extinct in Britain) Gwyniad, Coregonus pennantii Pollan, Coregonus pollan Schelly, Coregonus stigmaticus Vendace, Coregonus vandesius Huchen, Hucho hucho (introduced) Pink salmon, Oncorhynchus gorbuscha (introduced) Silverbrite salmon, Oncorhynchus keta (introduced) Coho salmon, Oncorhynchus kisutch (introduced) Cherry salmon (yamame-trout), Oncorhynchus masou (introduced) Rainbow trout, Oncorhynchus mykiss (introduced) Chinook salmon, Oncorhynchus tshawytscha (introduced) Ferox trout, Salmo ferox Sonaghan, Salmo nigripinnis Atlantic salmon, Salmo salar Gillaroo, Salmo stomachicus Brown trout/sea trout/Dollaghan, Salmo trutta Arctic charr, Salvelinus alpinus Brook trout, Salvelinus fontinalis (introduced) Shetland charr, Salvelinus gracillimus Loch Melvin charr, Salvelinus grayi Orkney charr, Salvelinus inframundus Haddy charr, Salvelinus killinensis Haweswater charr, Salvelinus lonsdalii Loch Shin charr, Salvelinus mallochi North Minch charr, Salvelinus maxillaris Lake trout, Salvelinus namaycush (introduced) Lough Leane charr, Salvelinus obtusus Llyn Peris charr, Salvelinus perisii Rannoch charr, Salvelinus struanensis Windermere charr, Salvelinus willughbii Golden charr, Salvelinus youngeri Grayling, Thymallus thymallus
Stomiiformes - dragonfish and marine hatchetfish
Sternoptychidae - marine hatchetfishes Half-naked hatchetfish, Argyropelacus hemigymnus Atlantic hatchetfish, Argyropelacus olfersi Mueller's pearlside, Maurolicus muelleri Diaphanous hatchet fish, Sternoptyx diaphana Constellationfish, Valenciennellus tripunctulatus
Gonostomatidae - bristlemouths Longray fangjaw, Bonapartia pedaliota Bristlemouth, Cyclothone alba Veiled anglemouth, Cyclothone microdon Elongated bristlemouth fish, Gonostoma elongatum Spark anglemouth, Sigmops bathyphilus
Stomiidae - dragonfish Large-eye snaggletooth, Borostomias antarcticus Long-barbeled dragonfish, Grammatostomias flagellibarba Barbeled scaleless dragonfish, Leptostomias gladiator Boa dragonfish, Stomias boa Threelight dragonfish, Trigonolampa miriceps
Phosichthyidae - lightfish Rendezvous fish, Polymetme corythaeola Parin's lightfish, Polymetme thaeocoryla
Aulopiformes - grinners
Paralepididae - barracudinas Spotted barracudina, Arctozenus risso Duckbill barracudina, Magnisudis atlantica Sharpchin barracudina, Paralepis coregonoides Pike-smelt, Sudis hyalina
Notosudidae - waryfish Blackfin waryfish, Scopelosaurus lepidus
Alepisauridae - lancetfish Long-snouted lancetfish, Alepisaurus ferox
Bathysauridae - deep sea lizardfish Deepsea lizardfish, Bathysaurus ferox
Myctophiformes - lanternfish
Myctophidae - lanternfish Glacier lanternfish, Benthosema glaciale Spothead lantern fish, Diaphus metopoclampus White-spotted lantern fish, Diaphus rafinesquii Chubby flashlightfish, Electrona risso