The warrior catfish[2] (Hemiarius dioctes) is a species of catfish in the family Ariidae.

[3] It was described by Patricia J. Kailola in 2000, originally under the genus Arius.

[1] It inhabits marine and freshwaters in New Guinea and Australia.

It reaches a standard length of 120 cm (47 in), and a maximum weight of 19 kg (42 lb).

[3] The species epithet "dioctes", derived from Ancient Greek, refers to the species' hunting qualities.