Polysteganus is a genus of ray-finned fish belonging to the family Sparidae, which includes the seabreams and porgies.

In 1919 David Starr Jordan formally designated D. (P.) coeruleopunctatus as the type species of Polysteganus.

[1] This genus is placed in the family Sparidae within the order Spariformes by the 5th edition of Fishes of the World.

The space between the eyes and the flange of the preoperculum are scaly while the bases of the dorsal and anal fin are not fleshy.

[7] Another species P. undulosus, which has been overfished in South Africa where a moratorium on fishing was put in place and since then there has been some indication of a recovery in the stocks, such as increased numbers of juveniles being seen in nursery areas.