Oreoglanis colurus is a species of catfish in the family Sisoridae, found in the upper reaches of the Nan River drainage, itself a tributary of the Chao Phraya River in northern Thailand, which was discovered by Vidthayanon, Saenjundaeng and H.H. Ng in 2009.
This species reaches a length of .
The fish's name derives from kólouros (Gr. úÃÂûÿàÃÂÿÃÂ), "bob-" or "stump-tailed", referring to its short caudal peduncle.