The Antarctic silverfish (Pleuragramma antarctica), or Antarctic herring, is a species of marine ray-finned fish belonging to the family Nototheniidae, the notothens or cod icefishes.

It is native to the Southern Ocean and the only truly pelagic fish in the waters near Antarctica.

[4] The Antarctic silverfish was first formally described in 1902 by the Belgian-born British zoologist George Albert Boulenger with the type locality given as Victoria Land in Antarctica.

[10] The postlarvae, 8–17 mm (0.31–0.67 in) in size, feed on eggs of calanoids (Calanoida), sea snails Limacina and tintinnids (Tintinnida).

[2] Antarctic silverfish are the most abundant pelagic fish species in the High Antarctic shelf waters of the Southern Ocean[12] and are important high-caloric prey species for high-trophic animals such as Adelie penguins, marine flying birds and Weddell seals.