灰白陆寄居蟹（学名：Coenobita rugosus），又名皱纹陆寄居蟹、波纹陆寄居蟹，为陆寄居蟹科陆寄居蟹属下的一个种。

Coenobita rugosus is a species of land hermit crab native to Australia and the east African coast to the south west Pacific.

C. rugosus has four walking legs, a small pincer, a large pincer, and antennae. When threatened C. rugosus is able to make a 'chirping' sound by rubbing its large pincer against its shell as a stridatory apparatus.