Arius oetik is a species of sea catfish in the family Ariidae.

[3] It is known from tropical marine and brackish waters in the western Pacific.

It reaches a maximum total length of 22.5 cm (8.9 in).

[2] Its diet consists of mussels, flathead locust lobsters, shrimp, conger eels, ponyfish, squids and Indian mackerels.

[4] This Ariidae-related article is a stub.