Location map of Crevichon

Crevichon is an islet off Herm, immediately to the north of Jethou, in the Channel Islands.

According to Dr S.K. Kellett-Smith, the name "Crevichon" means "island of crabs, crayfish or cranes".

Like many names in the Channel Islands, it is Norman language in origin. A thousand years ago, the water level was ten feet lower (3 m), so there were many more of the animals the island was named after.