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Freshwater Fish Species
All freshwater fish species found in rivers, lakes, streams, and ponds worldwide. From tiny tetras to the giant arapaima — covering every continent.
18,067
Total Species
1,926
Endangered (EN+CR)
1,910
Edible Species
204
Families
Ornate Galaxias
Galaxias ornatus
Galaxiidae
Least Concern
Ornate shiner
Codoma ornata
Least Concern
Ornate tetra
Megalamphodus bentosi
Least Concern
Edible
Orontes phoxinellus
Pseudophoxinus zeregi
Cyprinidae
Least Concern
Orpheus dace
Squalius orpheus
Cyprinidae
Least Concern
Ortega's Hypopygus
Hypopygus ortegai
Rhamphichthyidae
Least Concern
Orthochromis Kalungwishiensis
Orthochromis kalungwishiensis
Cichlidae
Least Concern
Orthochromis Polyacanthus
Orthochromis polyacanthus
Cichlidae
Least Concern
Orthochromis Stormsi
Orthochromis stormsi
Cichlidae
Least Concern
Orthochromis Torrenticola
Orthochromis torrenticola
Cichlidae
Least Concern
Orthospinus Franciscensis
Orthospinus franciscensis
Least Concern
Orthosternarchus Tamandua
Orthosternarchus tamandua
Apteronotidae
Least Concern
Oryzias Melastigma
Oryzias melastigma
Adrianichthyidae
Least Concern
Oryzias Sinensis
Oryzias sinensis
Adrianichthyidae
Least Concern
Oscar
Astronotus ocellatus
Cichlidae
Least Concern
Edible
Osphronemus Septemfasciatus
Osphronemus septemfasciatus
Osphronemidae
Least Concern
Ossancora Asterophysa
Ossancora asterophysa
Doradidae
Least Concern
Osteobrama Bakeri
Osteobrama bakeri
Cyprinidae
Least Concern
Osteobrama Cotio
Osteobrama cotio
Cyprinidae
Least Concern
Osteobrama Cunma
Osteobrama cunma
Cyprinidae
Least Concern
Osteobrama Neilli
Osteobrama neilli
Cyprinidae
Least Concern
Osteobrama Vigorsii
Osteobrama vigorsii
Cyprinidae
Least Concern
Osteochilus Borneensis
Osteochilus borneensis
Cyprinidae
Least Concern
Osteochilus Chini
Osteochilus chini
Cyprinidae
Least Concern
Osteochilus Flavicauda
Osteochilus flavicauda
Cyprinidae
Least Concern
Osteochilus Ingeri
Osteochilus ingeri
Cyprinidae
Least Concern
Osteochilus Intermedius
Osteochilus intermedius
Cyprinidae
Least Concern
Osteochilus Jeruk
Osteochilus jeruk
Cyprinidae
Least Concern
Osteochilus Kahajanensis
Osteochilus kahajanensis
Cyprinidae
Least Concern
Osteochilus Kappenii
Osteochilus kappenii
Cyprinidae
Least Concern
Osteochilus Lini
Osteochilus lini
Cyprinidae
Least Concern
Edible
Osteochilus Melanopleura
Osteochilus melanopleura
Cyprinidae
Least Concern
Edible
Osteochilus Microcephalus
Osteochilus microcephalus
Cyprinidae
Least Concern
Osteochilus Pentalineatus
Osteochilus pentalineatus
Cyprinidae
Least Concern
Osteochilus Scapularis
Osteochilus scapularis
Cyprinidae
Least Concern
Osteochilus Spilurus
Osteochilus spilurus
Cyprinidae
Least Concern
Osteochilus Vittatoides
Osteochilus vittatoides
Cyprinidae
Least Concern
Osteochilus Waandersii
Osteochilus waandersii
Cyprinidae
Least Concern
Othonocheirodus Eigenmanni
Othonocheirodus eigenmanni
Least Concern
Otocinclus Arnoldi
Otocinclus arnoldi
Loricariidae
Least Concern
Otocinclus Batmani
Otocinclus batmani
Loricariidae
Least Concern
Otocinclus Bororo
Otocinclus bororo
Loricariidae
Least Concern
Otocinclus Caxarari
Otocinclus caxarari
Loricariidae
Least Concern
Otocinclus Hasemani
Otocinclus hasemani
Loricariidae
Least Concern
Otocinclus Hoppei
Otocinclus hoppei
Loricariidae
Least Concern
Otocinclus Huaorani
Otocinclus huaorani
Loricariidae
Least Concern
Otocinclus Macrospilus
Otocinclus macrospilus
Loricariidae
Least Concern
Otocinclus Mura
Otocinclus mura
Loricariidae
Least Concern