Canned fish is a sterilized fish product in tin cans for long-term storage (up to 3 years), intended for retail trade, HoReCa, public and social catering, and export supplies. Canned tuna is available in its own juice (for dietary nutrition, salads, sandwiches) and in oil. Tin cans of 185 g (retail) and a professional format of 1.7 kg (for HoReCa and industrial use). Tuna is a valuable source of protein (up to 25 g per 100 g), Omega-3 fatty acids, vitamin D, and selenium. Sprats in oil are a classic delicacy product made from small smoked fish (Baltic sprat or Baltic herring), manually placed in tin cans. Cans of 160 g, 240 g. Production locations: Latvia, Russia. Sardines come in oil and tomato sauce. Spain, Portugal, Morocco. Tin cans of 120–240 g. Documentation: EAEU TR 040/2016 declaration, veterinary certificate. Shelf life: 2–3 years at room temperature. Keywords: canned fish, canned tuna, tuna in brine, sprats, sardines, fish canned wholesale, seafood canned.