Perisesarma is a genus of mangrove crabs in the family Sesarmidae (or Grapsidae in some classifications) predominantly found in the Indo-Pacific. There are 23 species as of late 2006 with two from west Africa: P. kammermani (De Man, 1883) & P. alberti Rathbun, 1921. They are typically small semi-terrestrial crabs found on the forest floor at low tide.