The Sakarya toothcarp (Anatolichthys villwocki) is a species of freshwater fish in the family Aphaniidae.

It is endemic to the upper Sakarya River basin in Turkey.

It is threatened by water abstraction, damming and a reduction of rainfall due to climate change.

[1] The specific name honours the German zoologist Wolfgang Villwock (1930-2014) of the University of Hamburg.

This Cyprinodontiformes article is a stub.