The Kamchatkan rainbow trout (Oncorhynchus mykiss mykiss) is a subspecies of the rainbow trout, which is a fish in the family Salmonidae. It is native to Russian Far East. Its main range is on the Kamchatka Peninsula, and it has also been recorded from the Commander Islands east of Kamchatka, and sporadically in the Sea of Okhotsk, as far south as the mouth of the Amur River.
This species reaches a length of 122 cm (48 in).
