Fallicambarus petilicarpus, the slenderwrist burrowing crayfish, is a species of crayfish in the family Cambaridae. It is found in southern Arkansas and northern Louisiana.
The IUCN conservation status of Fallicambarus petilicarpus is "EN", endangered. The species faces a high risk of extinction in the near future. The IUCN status was reviewed in 2010.