Hemisilurus mekongensis is a species of sheatfish first described by Bornbusch and Lundberg in 1989. Hemisilurus mekongensis is part of the genus Hemisilurus and the family Siluridae.

References Rainboth, W.J. (1996) Fishes of the Cambodian Mekong., FAO Species Identification Field Guide for Fishery Purposes. FAO, Rome, 265 p.