馒头蟹科（学名：Calappidae）是十足目的其中一个科，包括有16个属，当中七个只余下化石纪录。这16个属分别如下：

Calappidae is a family of crabs containing 16 genera, of which 7 are only known as fossils:

Fossils within this family can be found in sediment of Europe, United States, Mexico, Central America, Australia and Japan from Cretaceous to recent (age range: 66.043 to 0.0 Ma).