The Sona sea catfish, also called the marine catfish or the dusky catfish, (Pseudosciades sona) is a species of catfish in the family Ariidae. It was described by Francis Buchanan-Hamilton in 1822, originally under the genus Pimelodus. It inhabits rivers, estuaries and marine coasts around Pakistan, Indonesia, Polynesia and Thailand. It reaches a maximum total length of , but more commonly reaches a TL of . Its maximum known life expectancy is 6 years. Males and females mate for life.
The Sona sea catfish feeds on finfish and benthic invertebrates. Its meat is marketed fresh, as well as dried and salted.