Carpathonesticus birsteini is a species of araneomorph spider of the family Nesticidae. It occurs Russia and Georgia and is found in caves.
Charitonov. D. E.. Spiders and harvestspiders from the caves of the Black Sea coast of the Caucasus. Byulleten Moskovskogo Obshchestva Ispytatelei Prirody (N.S., Biol.). 1947. 52. 15–28.