| Видове сладководни риби разпространени в Коста Рика (Costa Rica) - източник Fishbase.org. |
| Вид | Английско име | Семейство |
| Achirus mazatlanus | Mazatlan sole | Achiridae |
| Aequidens coeruleopunctatus | | Cichlidae |
| Agonostomus monticola | Mountain mullet | Mugilidae |
| Alfaro cultratus | | Poeciliidae |
| Amatitlania nigrofasciata | Convict cichlid | Cichlidae |
| Amatitlania siquia | | Cichlidae |
| Amphilophus alfari | Pastel cichlid | Cichlidae |
| Amphilophus altifrons | | Cichlidae |
| Amphilophus bussingi | | Cichlidae |
| Amphilophus citrinellus | Midas cichlid | Cichlidae |
| Amphilophus diquis | | Cichlidae |
| Amphilophus longimanus | Red breast cichlid | Cichlidae |
| Amphilophus lyonsi | | Cichlidae |
| Amphilophus rhytisma | | Cichlidae |
| Amphilophus rostratus | | Cichlidae |
| Anchoa curta | Short anchovy | Engraulidae |
| Anchoa parva | Little anchovy | Engraulidae |
| Anchoa spinifer | Spicule anchovy | Engraulidae |
| Anguilla rostrata | American eel | Anguillidae |
| Archocentrus centrarchus | Flier cichlid | Cichlidae |
| Archocentrus multispinosus | Rainbow cichlid | Cichlidae |
| Aristichthys nobilis | Bighead carp | Cyprinidae |
| Astyanax aeneus | Banded tetra | Characidae |
| Astyanax fasciatus | Banded astyanax | Characidae |
| Astyanax nasutus | | Characidae |
| Astyanax orthodus | | Characidae |
| Astyanax robustus | | Characidae |
| Atherinella argentea | Moon silverside | Atherinopsidae |
| Atherinella chagresi | | Atherinopsidae |
| Atherinella hubbsi | | Atherinopsidae |
| Atherinella milleri | | Atherinopsidae |
| Atherinella sardina | | Atherinopsidae |
| Atractosteus tropicus | Tropical gar | Lepisosteidae |
| Awaous banana | River goby | Gobiidae |
| Bagre pinnimaculatus | Red sea catfish | Ariidae |
| Batrachoides waltersi | Walter's toadfish | Batrachoididae |
| Belonesox belizanus | Topminnow | Poeciliidae |
| Brachyhypopomus occidentalis | | Hypopomidae |
| Brachyrhaphis cascajalensis | | Poeciliidae |
| Brachyrhaphis holdridgei | | Poeciliidae |
| Brachyrhaphis olomina | | Poeciliidae |
| Brachyrhaphis parismina | | Poeciliidae |
| Brachyrhaphis rhabdophora | | Poeciliidae |
| Brachyrhaphis roseni | | Poeciliidae |
| Brachyrhaphis terrabensis | | Poeciliidae |
| Bramocharax bransfordii | | Characidae |
| Brycon behreae | | Characidae |
| Brycon guatemalensis | Machaca | Characidae |
| Bryconamericus gonzalezi | | Characidae |
| Bryconamericus ricae | | Characidae |
| Bryconamericus scleroparius | | Characidae |
| Bryconamericus terrabensis | | Characidae |
| Carassius auratus auratus | Goldfish | Cyprinidae |
| Carcharhinus leucas | Bull shark | Carcharhinidae |
| Carlana eigenmanni | | Characidae |
| Cathorops fuerthii | Congo sea catfish | Ariidae |
| Cathorops steindachneri | Steindachner's sea catfish | Ariidae |
| Centropomus ensiferus | Swordspine snook | Centropomidae |
| Centropomus nigrescens | Black snook | Centropomidae |
| Centropomus parallelus | Fat snook | Centropomidae |
| Centropomus pectinatus | Tarpon snook | Centropomidae |
| Citharichthys gilberti | Bigmouth sanddab | Paralichthyidae |
| Citharichthys uhleri | Voodoo whiff | Paralichthyidae |
| Colossoma macropomum | Tambaqui | Characidae |
| Cryptoheros myrnae | | Cichlidae |
| Cryptoheros sajica | | Cichlidae |
| Cryptoheros septemfasciatus | | Cichlidae |
| Ctenogobius claytonii | Mexican goby | Gobiidae |
| Ctenogobius pseudofasciatus | Slashcheek goby | Gobiidae |
| Ctenopharyngodon idella | Grass carp | Cyprinidae |
| Cyphocharax magdalenae | | Curimatidae |
| Cyprinus carpio carpio | Common carp | Cyprinidae |
| Dormitator latifrons | Pacific fat sleeper | Eleotridae |
| Dormitator maculatus | Fat sleeper | Eleotridae |
| Dorosoma chavesi | Nicaragua gizzard shad | Clupeidae |
| Eleotris amblyopsis | Large-scaled spinycheek sleeper | Eleotridae |
| Eleotris picta | Spotted sleeper | Eleotridae |
| Eleotris pisonis | Spinycheek sleeper | Eleotridae |
| Eleotris tecta | | Eleotridae |
| Eucinostomus currani | Pacific flagfin mojarra | Gerreidae |
| Eucinostomus gracilis | Graceful mojarra | Gerreidae |
| Eugerres plumieri | Striped mojarra | Gerreidae |
| Gambusia nicaraguensis | Nicaraguan mosquitofish | Poeciliidae |
| Gerres cinereus | Yellow fin mojarra | Gerreidae |
| Gobiesox fulvus | | Gobiesocidae |
| Gobiesox nudus | Clingfish | Gobiesocidae |
| Gobiesox potamius | | Gobiesocidae |
| Gobioides peruanus | Peruvian eelgoby | Gobiidae |
| Gobiomorus dormitor | Bigmouth sleeper | Eleotridae |
| Gobiomorus maculatus | Pacific sleeper | Eleotridae |
| Gobiomorus polylepis | Finescale sleeper | Eleotridae |
| Gymnotus maculosus | Spotted knifefish | Gymnotidae |
| Hemieleotris latifasciata | Pygmy sleeper | Eleotridae |
| Hoplias malabaricus | Trahira | Erythrinidae |
| Hoplias microlepis | | Erythrinidae |
| Hyphessobrycon panamensis | | Characidae |
| Hyphessobrycon savagei | | Characidae |
| Hyphessobrycon tortuguerae | | Characidae |
| Hypophthalmichthys molitrix | Silver carp | Cyprinidae |
| Hypostomus panamensis | | Loricariidae |
| Hypsophrys nematopus | Poor man's tropheus | Cichlidae |
| Hypsophrys nicaraguensis | Moga | Cichlidae |
| Imparfinis lineatus | | Heptapteridae |
| Joturus pichardi | Bobo mullet | Mugilidae |
| Kuhlia mugil | Barred flagtail | Kuhliidae |
| Leptophilypnus panamensis | | Eleotridae |
| Lile stolifera | Pacific piquitinga | Clupeidae |
| Megalops atlanticus | Tarpon | Megalopidae |
| Micropterus salmoides | Largemouth bass | Centrarchidae |
| Mugil cephalus | Flathead mullet | Mugilidae |
| Mugil curema | White mullet | Mugilidae |
| Mylopharyngodon piceus | Black carp | Cyprinidae |
| Notarius biffi | | Ariidae |
| Notarius cookei | | Ariidae |
| Odontostilbe dialeptura | | Characidae |
| Oligoplites palometa | Maracaibo leatherjacket | Carangidae |
| Oligoplites saurus | Leatherjack | Carangidae |
| Oncorhynchus mykiss | Rainbow trout | Salmonidae |
| Oreochromis aureus | Blue tilapia | Cichlidae |
| Oreochromis mossambicus | Mozambique tilapia | Cichlidae |
| Oreochromis niloticus niloticus | Nile tilapia | Cichlidae |
| Oreochromis urolepis hornorum | Wami tilapia | Cichlidae |
| Oxyzygonectes dovii | White-eye | Anablepidae |
| Parachromis dovii | Guapote | Cichlidae |
| Parachromis friedrichsthalii | Yellowjacket cichlid | Cichlidae |
| Parachromis loisellei | | Cichlidae |
| Parachromis managuensis | Guapote tigre | Cichlidae |
| Phallichthys amates | Merry widow livebearer | Poeciliidae |
| Phallichthys quadripunctatus | | Poeciliidae |
| Phallichthys tico | | Poeciliidae |
| Piabucina boruca | | Lebiasinidae |
| Pimelodella chagresi | | Heptapteridae |
| Poecilia gillii | | Poeciliidae |
| Poecilia mexicana | Shortfin molly | Poeciliidae |
| Poecilia reticulata | Guppy | Poeciliidae |
| Poeciliopsis elongata | Elongate toothcarp | Poeciliidae |
| Poeciliopsis paucimaculata | | Poeciliidae |
| Poeciliopsis retropinna | | Poeciliidae |
| Poeciliopsis santaelena | | Poeciliidae |
| Poeciliopsis turrubarensis | | Poeciliidae |
| Pomadasys bayanus | Purplemouth grunt | Haemulidae |
| Pomadasys crocro | Burro grunt | Haemulidae |
| Pomadasys empherus | Bigspine grunt | Haemulidae |
| Priapichthys annectens | | Poeciliidae |
| Priapichthys panamensis | | Poeciliidae |
| Pseudocheirodon terrabae | | Characidae |
| Pseudophallus elcapitanensis | | Syngnathidae |
| Pseudophallus mindii | | Syngnathidae |
| Pseudophallus starksii | | Syngnathidae |
| Pterobrycon myrnae | Semaphore tetra | Characidae |
| Rhamdia guatemalensis | Guatemalan chul?n | Heptapteridae |
| Rhamdia laticauda | Filespine chul?n | Heptapteridae |
| Rhamdia nicaraguensis | | Heptapteridae |
| Rhamdia quelen | | Heptapteridae |
| Rhoadsia altipinna | | Characidae |
| Rineloricaria uracantha | | Loricariidae |
| Rivulus fuscolineatus | | Rivulidae |
| Rivulus glaucus | | Rivulidae |
| Rivulus hildebrandi | | Rivulidae |
| Rivulus isthmensis | | Rivulidae |
| Rivulus rubripunctatus | | Rivulidae |
| Rivulus siegfriedi | | Rivulidae |
| Rivulus uroflammeus | | Rivulidae |
| Rocio octofasciata | Jack Dempsey | Cichlidae |
| Roeboides bouchellei | Crystal tetra | Characidae |
| Roeboides ilseae | | Characidae |
| Sciades assimilis | Mayan sea catfish | Ariidae |
| Sciades guatemalensis | Blue sea catfish | Ariidae |
| Sciades seemanni | Tete sea catfish | Ariidae |
| Sicydium adelum | | Gobiidae |
| Sicydium altum | | Gobiidae |
| Sicydium salvini | | Gobiidae |
| Strongylura exilis | Californian needlefish | Belonidae |
| Synbranchus marmoratus | Marbled swamp eel | Synbranchidae |
| Tomocichla sieboldii | | Cichlidae |
| Tomocichla tuba | | Cichlidae |
| Trichomycterus striatus | | Trichomycteridae |
| Trinectes fluviatilis | Freshwater sole | Achiridae |
| Vieja maculicauda | Blackbelt cichlid | Cichlidae |
| Xenophallus umbratilis | | Poeciliidae |
| Xiphophorus variatus | Variable platyfish | Poeciliidae |