Cethegus multispinosus is a species of mygalomorph spider in the Euagridae family. It is endemic to Australia. It was described in 1984 by Australian arachnologist Robert Raven.[1]
The species occurs in Far North Queensland in open forest habitats on the Cape York Peninsula. The type locality is 80 km north of Musgrave.[1]
The spiders are fossorial, terrestrial predators. They construct curtain-like silk webs.[1]