The Ithullans are a humanoid species that hails from the planet Ithull. As natives of the Stenness Node, they are one of the 25 species collectively called "Nessies".
Two-hundred years before the rise of the Galactic Empire, the Mandalorians waged war against the Ithullans and nearly wiped them out. By the time of the Battle of Yavin, there were very few Ithullans left, and only a few scattered members of the Ithullan race could be found wandering the streets of Mos Eisley on Tatooine. Both the bounty hunters Gorm and Dyyz Nataz were known to wear Ithullan armor.