Rainbow trout (Oncorhynchus mykiss)

General data
- Main name: Rainbow trout
- Local names: Steelhead
- Climates: Subtropical, Temperate, Continental, Subpolar, Mountain
- Habitat: Freshwater
- Native: North America
- Introduced: Europe, Asia, South America, Australia & Oceania, Africa
- Distribution: Drin, Lake Ohrid, Neretva, Soca, Nestos, Rhine, View all... Dnieper, Yukon, Piave, Issyk-Kul lake, Vjosa, Brazos, Kemijoki, Klamath River, Sacramento River, Delaware River, Connecticut River, Adige, Guadiana, Guadalquivir, Orange river, Tagliamento, Brenta, Livenza, River Tana, Guadalupe, Kuskokwim River, Olds River, Fraser River, Rogue River (Oregon), Russian River (California), Kokemaenjoki, Smith River (California), Eel River (California), Kitimat River
Classification
- Genus: Oncorhynchus - Pacific Salmons and Trouts
- Family: Salmonidae - Salmons and Trouts
- Order: Salmoniformes - Salmons and Trouts
- Class: Teleostei - Ray-finned fishes
- Superclass: Osteichthyes - Bony fishes