| Order | Family | Species | Status | FB name | Name |
| Characiformes | Alestidae | Alestes baremoze | native | Silversides | A-gbantan |
| Siluriformes | Amphiliidae | Amphilius atesuensis | native | ||
| Siluriformes | Amphiliidae | Amphilius platychir | native | Mountain barbel | |
| Siluriformes | Amphiliidae | Amphilius rheophilus | native | ||
| Perciformes | Cichlidae | Anomalochromis thomasi | native | ||
| Cyprinodontiformes | Nothobranchiidae | Aphyosemion guineense | native | Guinean killi | |
| Cyprinodontiformes | Poeciliidae | Aplocheilichthys normani | native | Norman's lampeye | |
| Cyprinodontiformes | Poeciliidae | Aplocheilichthys spilauchen | native | Banded lampeye | |
| Siluriformes | Ariidae | Arius latiscutatus | native | Rough-head sea catfish | |
| Siluriformes | Claroteidae | Auchenoglanis occidentalis | native | Bubu | Gbada |
| Perciformes | Gobiidae | Awaous lateristriga | native | West African freshwater goby | |
| Cypriniformes | Cyprinidae | Barbus ablabes | native | ||
| Cypriniformes | Cyprinidae | Barbus bagbwensis | native | ||
| Cypriniformes | Cyprinidae | Barbus bigornei | native | ||
| Cypriniformes | Cyprinidae | Barbus foutensis | native | ||
| Cypriniformes | Cyprinidae | Barbus gruveli | native | ||
| Cypriniformes | Cyprinidae | Barbus inaequalis | native | ||
| Cypriniformes | Cyprinidae | Barbus leonensis | native | ||
| Cypriniformes | Cyprinidae | Barbus liberiensis | native | ||
| Cypriniformes | Cyprinidae | Barbus macrops | native | Blackstripe barb | |
| Cypriniformes | Cyprinidae | Barbus sacratus | native | ||
| Cypriniformes | Cyprinidae | Barbus tiekoroi | native | ||
| Cypriniformes | Cyprinidae | Barbus wurtzi | native | ||
| Osteoglossiformes | Mormyridae | Brienomyrus brachyistius | native | ||
| Osteoglossiformes | Mormyridae | Brienomyrus longianalis | native | ||
| Characiformes | Alestidae | Brycinus longipinnis | native | Longfin tetra | Serekulay |
| Characiformes | Alestidae | Brycinus macrolepidotus | native | True big-scale tetra | |
| Cyprinodontiformes | Nothobranchiidae | Callopanchax huwaldi | native | ||
| Cyprinodontiformes | Nothobranchiidae | Callopanchax occidentalis | native | Golden pheasant panchax | |
| Cyprinodontiformes | Nothobranchiidae | Callopanchax toddi | native | ||
| Carcharhiniformes | Carcharhinidae | Carcharhinus leucas | native | Bull shark | |
| Siluriformes | Mochokidae | Chiloglanis occidentalis | native | ||
| Siluriformes | Mochokidae | Chiloglanis polyodon | native | ||
| Perciformes | Cichlidae | Chromidotilapia guentheri guentheri | native | Guenther's Mouthbrooder | |
| Siluriformes | Claroteidae | Chrysichthys johnelsi | native | Ba-sagoin bethuguye | |
| Siluriformes | Claroteidae | Chrysichthys maurus | native | ||
| Siluriformes | Claroteidae | Chrysichthys nigrodigitatus | native | Bagrid catfish | |
| Pleuronectiformes | Paralichthyidae | Citharichthys stampflii | native | Smooth flounder | |
| Siluriformes | Clariidae | Clarias anguillaris | native | Mudfish | |
| Siluriformes | Clariidae | Clarias buettikoferi | native | ||
| Siluriformes | Clariidae | Clarias gariepinus | native | North African catfish | T-nima |
| Siluriformes | Clariidae | Clarias laeviceps dialonensis | native | ||
| Siluriformes | Clariidae | Clarias laeviceps laeviceps | native | Catfish | |
| Siluriformes | Clariidae | Clarias salae | native | ||
| Perciformes | Anabantidae | Ctenopoma kingsleyae | native | Tailspot ctenopoma | |
| Anguilliformes | Ophichthidae | Dalophis boulengeri | native | ||
| Perciformes | Eleotridae | Eleotris senegalensis | native | ||
| Perciformes | Eleotridae | Eleotris vittata | native | ||
| Elopiformes | Elopidae | Elops senegalensis | native | Senegalese ladyfish | Ninebone |
| Cyprinodontiformes | Nothobranchiidae | Epiplatys barmoiensis | native | ||
| Cyprinodontiformes | Nothobranchiidae | Epiplatys bifasciatus bifasciatus | native | ||
| Cyprinodontiformes | Nothobranchiidae | Epiplatys fasciolatus | native | ||
| Cyprinodontiformes | Nothobranchiidae | Epiplatys josianae | native | ||
| Cyprinodontiformes | Nothobranchiidae | Epiplatys lamottei | native | Redspotted panchax | |
| Cyprinodontiformes | Nothobranchiidae | Epiplatys njalaensis | native | ||
| Clupeiformes | Clupeidae | Ethmalosa fimbriata | native | Bonga shad | Awefu |
| Perciformes | Gobiidae | Gobioides sagitta | native | ||
| Osteoglossiformes | Gymnarchidae | Gymnarchus niloticus | native | Aba | Kpoyei |
| Perciformes | Cichlidae | Hemichromis bimaculatus | native | Jewelfish | Gboblie |
| Perciformes | Cichlidae | Hemichromis fasciatus | native | Banded jewelfish | Gbamgbama |
| Characiformes | Hepsetidae | Hepsetus odoe | native | Kafue pike | K-thin |
| Siluriformes | Clariidae | Heterobranchus isopterus | native | ||
| Siluriformes | Clariidae | Heterobranchus longifilis | native | Vundu | |
| Osteoglossiformes | Mormyridae | Hippopotamyrus paugyi | native | ||
| Characiformes | Alestidae | Hydrocynus forskahlii | native | Ka-gbith | |
| Characiformes | Citharinidae | Ichthyborus quadrilineatus | native | ||
| Osteoglossiformes | Mormyridae | Isichthys henryi | native | Vomgboi | |
| Perciformes | Eleotridae | Kribia kribensis | native | ||
| Perciformes | Eleotridae | Kribia leonensis | endemic | ||
| Perciformes | Eleotridae | Kribia nana | native | ||
| Cypriniformes | Cyprinidae | Labeo alluaudi | native | ||
| Cypriniformes | Cyprinidae | Labeo coubie | native | African carp | |
| Cypriniformes | Cyprinidae | Labeo curriei | native | ||
| Cypriniformes | Cyprinidae | Labeo parvus | native | ||
| Characiformes | Alestidae | Ladigesia roloffi | native | Jelly bean tetra | |
| Clupeiformes | Clupeidae | Laeviscutella dekimpei | native | Roundbelly pellonuline | |
| Perciformes | Latidae | Lates niloticus | native | Nile perch | |
| Cypriniformes | Cyprinidae | Leptocypris guineensis | native | ||
| Cypriniformes | Cyprinidae | Leptocypris taiaensis | endemic | ||
| Mugiliformes | Mugilidae | Liza falcipinnis | native | Sicklefin mullet | Mollit |
| Perciformes | Lutjanidae | Lutjanus dentatus | native | African brown snapper | Grouper |
| Siluriformes | Malapteruridae | Malapterurus barbatus | native | ||
| Siluriformes | Malapteruridae | Malapterurus beninensis | questionable | ||
| Siluriformes | Malapteruridae | Malapterurus leonensis | native | ||
| Siluriformes | Malapteruridae | Malapterurus punctatus | native | ||
| Siluriformes | Malapteruridae | Malapterurus stiassnyae | native | ||
| Osteoglossiformes | Mormyridae | Marcusenius mento | native | ||
| Osteoglossiformes | Mormyridae | Marcusenius meronai | endemic | ||
| Osteoglossiformes | Mormyridae | Marcusenius thomasi | native | ||
| Synbranchiformes | Mastacembelidae | Mastacembelus liberiensis | native | ||
| Synbranchiformes | Mastacembelidae | Mastacembelus nigromarginatus | native | ||
| Synbranchiformes | Mastacembelidae | Mastacembelus taiaensis | native | ||
| Elopiformes | Megalopidae | Megalops atlanticus | native | Tarpon | Tarpon |
| Characiformes | Alestidae | Micralestes acutidens | native | Sharptooth tetra | N'keria |
| Characiformes | Alestidae | Micralestes occidentalis | native | ||
| Syngnathiformes | Syngnathidae | Microphis brachyurus aculeatus | native | ||
| Siluriformes | Mochokidae | Mochokiella paynei | native | ||
| Synbranchiformes | Synbranchidae | Monopterus boueti | native | Liberian swamp eel | |
| Osteoglossiformes | Mormyridae | Mormyrops anguilloides | native | Cornish jack | |
| Osteoglossiformes | Mormyridae | Mormyrops breviceps | native | ||
| Osteoglossiformes | Mormyridae | Mormyrops caballus | native | ||
| Osteoglossiformes | Mormyridae | Mormyrus macrophthalmus | native | Magbukpui | |
| Osteoglossiformes | Mormyridae | Mormyrus rume rume | native | Mormyrids | Kayani |
| Osteoglossiformes | Mormyridae | Mormyrus tapirus | native | ||
| Mugiliformes | Mugilidae | Mugil cephalus | native | Flathead mullet | Lombbie |
| Characiformes | Citharinidae | Nannocharax ansorgii | native | ||
| Characiformes | Citharinidae | Nannocharax fasciatus | native | ||
| Perciformes | Gobiidae | Nematogobius maindroni | native | ||
| Characiformes | Citharinidae | Neolebias unifasciatus | native | ||
| Siluriformes | Claroteidae | Notoglanidium maculatum | native | ||
| Siluriformes | Claroteidae | Notoglanidium thomasi | native | ||
| Clupeiformes | Clupeidae | Odaxothrissa ansorgii | native | Ansorge's fangtooth pellonuline | |
| Synbranchiformes | Synbranchidae | Ophisternon afrum | native | Guinea swamp eel | |
| Perciformes | Cichlidae | Oreochromis niloticus niloticus | native | Nile tilapia | |
| Osteoglossiformes | Pantodontidae | Pantodon buchholzi | native | Freshwater butterflyfish | |
| Osteoglossiformes | Notopteridae | Papyrocranus afer | native | Reticulate knifefish | Fak |
| Perciformes | Channidae | Parachanna obscura | native | Snake-head | |
| Siluriformes | Schilbeidae | Parailia spiniserrata | native | ||
| Siluriformes | Amphiliidae | Paramphilius teugelsi | native | ||
| Siluriformes | Amphiliidae | Paramphilius trichomycteroides | native | ||
| Clupeiformes | Clupeidae | Pellonula leonensis | native | Smalltoothed pellonula | |
| Perciformes | Cichlidae | Pelmatochromis buettikoferi | native | ||
| Perciformes | Cichlidae | Pelvicachromis humilis | native | ||
| Perciformes | Cichlidae | Pelvicachromis roloffi | native | ||
| Osteoglossiformes | Mormyridae | Petrocephalus bovei bovei | native | ||
| Osteoglossiformes | Mormyridae | Petrocephalus levequei | native | ||
| Osteoglossiformes | Mormyridae | Petrocephalus pellegrini | native | ||
| Osteoglossiformes | Mormyridae | Petrocephalus tenuicauda | native | ||
| Polypteriformes | Polypteridae | Polypterus palmas buettikoferi | native | ||
| Polypteriformes | Polypteridae | Polypterus palmas palmas | native | Shortfin bichir | |
| Polypteriformes | Polypteridae | Polypterus senegalus senegalus | native | Gray bichir | Keskla |
| Perciformes | Haemulidae | Pomadasys jubelini | native | Sompat grunt | Sompie |
| Pristiformes | Pristidae | Pristis microdon | native | Largetooth sawfish | |
| Cypriniformes | Cyprinidae | Prolabeo batesi | endemic | ||
| Lepidosireniformes | Protopteridae | Protopterus annectens annectens | native | West African lungfish | Hemei |
| Cyprinodontiformes | Aplocheilidae | Pseudepiplatys annulatus | native | Banded panchax | |
| Cypriniformes | Cyprinidae | Raiamas nigeriensis | native | ||
| Cypriniformes | Cyprinidae | Raiamas scarciensis | native | ||
| Cypriniformes | Cyprinidae | Raiamas steindachneri | native | ||
| Characiformes | Alestidae | Rhabdalestes septentrionalis | native | ||
| Perciformes | Cichlidae | Sarotherodon caudomarginatus | native | ||
| Perciformes | Cichlidae | Sarotherodon melanotheron heudelotii | native | Mango fish | |
| Perciformes | Cichlidae | Sarotherodon melanotheron leonensis | native | ||
| Perciformes | Cichlidae | Sarotherodon melanotheron melanotheron | native | Blackchin tilapia | |
| Perciformes | Cichlidae | Sarotherodon occidentalis | native | ||
| Siluriformes | Schilbeidae | Schilbe intermedius | native | Silver catfish | |
| Siluriformes | Schilbeidae | Schilbe micropogon | native | ||
| Siluriformes | Schilbeidae | Schilbe mystus | native | African butter catfish | |
| Cyprinodontiformes | Nothobranchiidae | Scriptaphyosemion bertholdi | native | Berthold's killi | |
| Cyprinodontiformes | Nothobranchiidae | Scriptaphyosemion brueningi | native | Bruening's killi | |
| Cyprinodontiformes | Nothobranchiidae | Scriptaphyosemion chaytori | native | ||
| Cyprinodontiformes | Nothobranchiidae | Scriptaphyosemion etzeli | native | ||
| Cyprinodontiformes | Nothobranchiidae | Scriptaphyosemion fredrodi | native | ||
| Cyprinodontiformes | Nothobranchiidae | Scriptaphyosemion geryi | native | Gérys killi | |
| Cyprinodontiformes | Nothobranchiidae | Scriptaphyosemion guignardi | native | ||
| Cyprinodontiformes | Nothobranchiidae | Scriptaphyosemion liberiense | native | ||
| Cyprinodontiformes | Nothobranchiidae | Scriptaphyosemion roloffi | native | ||
| Clupeiformes | Clupeidae | Sierrathrissa leonensis | native | West African pygmy herring | |
| Pleuronectiformes | Soleidae | Synaptura lusitanica nigromaculata | native | ||
| Siluriformes | Mochokidae | Synodontis annectens | native | ||
| Siluriformes | Mochokidae | Synodontis ansorgii | native | ||
| Siluriformes | Mochokidae | Synodontis schall | native | Wahrindi | |
| Siluriformes | Mochokidae | Synodontis thysi | native | ||
| Siluriformes | Mochokidae | Synodontis waterloti | native | ||
| Tetraodontiformes | Tetraodontidae | Tetraodon lineatus | native | Globe fish | Gbatagbotei |
| Perciformes | Cichlidae | Tilapia brevimanus | native | ||
| Perciformes | Cichlidae | Tilapia buttikoferi | native | ||
| Perciformes | Cichlidae | Tilapia guineensis | native | Guinean tilapia | |
| Perciformes | Cichlidae | Tilapia joka | native | ||
| Perciformes | Cichlidae | Tilapia louka | native | ||
| Perciformes | Cichlidae | Tilapia zillii | native | Redbelly tilapia | A-sannoh |
| Perciformes | Carangidae | Trachinotus teraia | native | Shortfin pompano | |
| Perciformes | Cichlidae | Tylochromis intermedius | native | ||
| Perciformes | Cichlidae | Tylochromis jentinki | native | ||
| Perciformes | Cichlidae | Tylochromis leonensis | native | ||
| Osteoglossiformes | Notopteridae | Xenomystus nigri | native | African knifefish | Fak |