Calpasoma is a genus of freshwater hydrozoans in the family Olindiidae.

Like all members of that family, they have a polyp phase and a medusa phase.

The genus is monotypic, including only the species Calpasoma dactylopterum.

[1] Calpasoma has been reported living in fresh water in North America.

[2] This Hydrozoa-related article is a stub.