Chemnitzia is a genus of very small sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies. According to the online database WoRMS (World Register of Marine Species), as of December 2011, some (but not all) of the species in this genus have been synonymized into the genus Turbonilla. The genus Chemnitzia itself and the subgenus Turbonilla (Chemnitzia) d'Orbigny, 1839 have been recognized as a synonym of Turbonilla.