Clarias intermedius is a species of clariid catfish from Indonesian Borneo.

It is found in blackwater swampy areas just between the Barito and Sampit rivers; the holotype was collected in a market in Palangkaraya, with paratypes collected from areas such as Bukit Pinang, Kereng Bengkirai, Bereng Bengkel, and Bangkal, all located surrounding Palangkaraya in Central Kalimantan Province.

[2] Described as of 2001, the holotype for this specimen was noted to be 214 mm (8.4 in) long from skull to caudal fin, with the 18 paratypes recorded to range from 135 to 310 mm (5.3 to 12.2 in), therefore possibly including juveniles.

The diagnosis of this species include:[2] Other characters have been noted to include: Live coloration has been observed to vary, notably from dark brown to black on the upper and lateral sides of head and body, with dark fins.

All specimens also possess an array of irregular and discrete white spots being visible on lower side of flanks just between the upper and lower body coloration, with a diameter about 0.5 mm.