The northern sennet, Sphyraena borealis, is an ocean-going species of fish in the barracuda family, Sphyraenidae.

De Kay's description was part of several volumes he published regarding the fauna of New York from 1842-1849.

[4] Like other members of the family Sphyraenidae, northern sennet have elongated bodies, pike-like heads, and large jaws.

[6] Northern sennet can grow to be up to 46 cm in length,[7] but they are generally considered the smallest of the barracudas - with many adults growing to less than 1 ft (0.3 m) in length,[8] and the greatest recorded weight being only 0.93 kg.

Although they normally occur in subtropical climates from 43°N - 18°N latitudes,[6] they can be found from Canada[10] and Massachusetts to southern Florida, the Gulf of Mexico,[6] where they are generally reef associated,[6] and the eastern coast of Panama.