Rimula is a genus of sea snails, marine gastropod mollusks in the family Fissurellidae, the keyhole limpets.

[1] The name of the genus is a diminutive of "rime", a fissure.

The shell is thin and cancellated, with a perforation near the anterior margin.

[2] Species within the genus Rimula include:

This Fissurellidae-related article is a stub.