Berang-berang di dunia terdiri dari 13 jenis.
Aonyx capensis – African Clawless Otter
Aonyx cinereus – Asian Small-clawed Otter
Aonyx congicus – Congo Clawless Otter
Enhydra lutris – Sea Otter
Hydrictis maculicollis – Spotted-necked Otter
Lontra canadensis – North American River Otter
Lontra felina – Marine Otter
Lontra longicaudis – Neotropical Otter
Lontra provocax – Southern River Otter
Lutra lutra – Eurasian Otter
Lutra sumatrana – Hairy-nosed Otter
Lutrogale perspicillata – Smooth-coated Otter
Pteronura brasiliensis – Giant Otter
Di Indonesia ada 4 jenis yaitu Aonyx cinereus, Lutra-lutra, Lutra sumatrana dan Lutrogale perspicillata