Cottus rhenanus is a species of freshwater ray-finned fish belonging to the family Cottidae, the typical sculpins.

It is found in France, Belgium, Germany, Luxembourg, and the Netherlands.

It inhabits the Rhine and Meuse river drainages.

[2] It prefers streams with clear, cool, moderate to swift water and stone substrate.

[4] The specific name rhenatus means belonging to Rhenus, the Latin name of the River Rhine.