Cryptocoryne mekongensis is a species belonging to the Araceae genus Cryptocoryne that was described in 2010.
The species is found in the Mekong region of southern Laos and Cambodia.
The species is characterized by a one to three times twisted spathe limb that is purple colored at the inside, with a purple collar. The limb also has pronounced transverse surface ridges.
The species is easy to cultivate emersed with much light in a sandy soil with some loam added.