Turbonilla musorstom is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.
The specific name musorstom is the acronym for the joint expeditions by the Muséum national d'Histoire naturelle (‘Mus.’) and the Office de la Recherche Scientifique et Technique Outre-Mer (‘Orstom’).
The shell grows to a length of 3.6 mm.
