Enteroctopus dofleini is a large marine cephalopod species in the family Enteroctopodidae, commonly known as the giant Pacific octopus. It is native to the temperate and subarctic waters of the North Pacific Ocean, ranging from Japan and the Korean Peninsula across the Sea of Okhotsk and Bering Sea to Alaska, British Columbia, and the western coast of the United States. The genus name Enteroctopus derives from Greek enteron meaning “intestine” and octopus meaning “eight-footed,” referring to internal anatomical characteristics distinguishing the genus, while the species epithet dofleini honors the German zoologist Franz Doflein. As one of the largest octopus species in the world, it inhabits rocky coastal habitats and continental shelf environments.

Historically and in modern time, Enteroctopus dofleini has been harvested for food in Japan, Korea, coastal Russia, and the Pacific Northwest of North America, where it holds both subsistence and commercial value. As a food source, Enteroctopus dofleini provides firm, mildly sweet flesh from its mantle and arms. It is commonly boiled, blanched, grilled, braised, or served raw in thin slices. In Japanese cuisine it is known as tako and is used in sushi, sashimi, sunomono (vinegared salads), and takoyaki; in Korean cuisine it appears in dishes such as nakji-style preparations and spicy stir-fries; and in Pacific Northwest Indigenous cuisines it has been traditionally roasted, dried, or stewed. The texture requires careful preparation to tenderize the muscle fibers, often through massaging with salt or controlled simmering. Processed forms include boiled octopus sold chilled for slicing, as well as dried octopus products.

Nutritionally, Enteroctopus dofleini contains taurine, omega-3 fatty acids such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), and free amino acids including glutamic acid and glycine that contribute to umami and sweetness. It is also a source of vitamin B12 and essential trace minerals such as selenium and copper.