Moruga fuliginea is a species of mygalomorph spider in the Barychelidae family. It is endemic to Australia. It was described in 1881 by Swedish arachnologist Tamerlan Thorell.
The holotype male has a carapace 7.77 mm long by 6.15 mm wide. The carapace, chelicerae and legs are reddish-brown in colour.
The species occurs in the Gulf Country and Cape York Peninsula of northern Australia. The type locality is Somerset.