Coelotrochus is a genus of small sea snails, marine gastropod mollusks in the family Trochidae, the top snails.

[1] The false umbilicus is very deep and narrow, penetrating deeper than the columella, which is inserted upon its edge, not in the centre of the axis.

[2] This marine genus is endemic to New Zealand.

Species within the genus Coelotrochus include:

This Trochidae-related article is a stub.