- any mackerel-like fish of the genus Sarda, as S. sarda, of the Atlantic Ocean.
- any of several related species, as the skipjack, Euthynnus pelamis.
- any of various small tunny-like marine food fishes of the genus Sarda, of warm Atlantic and Pacific waters: family Scombridae (tunnies and mackerels)
- any of various similar or related fishes, such as Katsuwonus pelamis (oceanic bonito), the flesh of which is dried and flaked and used in Japanese cookery
