Pennahia is a genus of marine ray-finned fishes belonging to the family Sciaenidae, the drums and croakers.

Pennahia was first proposed as a subgenus of Johnius in 1926 by the American ichthyologist Henry Weed Fowler with Otolithus macrophthalmus, which had been described by Pieter Bleeker in 1849 from Jakarta, as the type species.

O. macropthalmus was later shown to be synonymous with Johnius aneus, a species described by Marcus Elieser Bloch from Malabar in 1793.

The sagitta is shaped like a tadpole and hasi its "tail" only slightly arched.

[7] The largest species in the genus is the silver croaker P. argentata which has a maximum published standard length of 40 cm (16 in) while the smallest P. ovata which has a maximum published standard length of 18.7 cm (7.4 in).