Cryptosoma is a genus of crabs in the family Calappidae, containing the following species:

• Cryptosoma bairdii (Stimpson, 1860)
• Cryptosoma balguerii (Desbonne, in Desbonne & Schramm, 1867)
• Cryptosoma cristatum Brullé, 1837
• Cryptosoma dentatum Brullé, 1839
• Cryptosoma garthi Galil & Clark, 1996
• Cryptosoma orientis Adams & White, 1849
• Cryptosoma pallidum Selenka, de Man & Bülow, 1883
• Cryptosoma strombi Selenka, de Man & Bülow, 1883

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