Hmm...most of these refer to Dragons, but since Devilsaurs are kinda on the same scale WoW-wise, I'll throw these ones out to you.
"Abraxas" - Famous dragon from Persian Mythology
"Tarasque" - Saint Martha's tamed beast
"Typhon" - From Greek mythology; monsterous son of Tartarus & Gaia
"Ghidorah" - Famous kingly dragon from various Godzilla films
"Bahamut" - From Final Fantasy
"Grundle" - From Atari Adventure
"Carcassonne" - From The Princess And The Dragon
"Siberys" - Progenitor Dragon from the world of Eberron (novel)
"Belial" - Colossal, Insane Dragon from Steven Brust's "To Reign In Hell"
"Ragnark" - Stone Dragon of A'loa Glen
"Urnikh" - from "The Dragon On The Bookshelf"
"Eliandir" - from "The Binding Of The Blade"
"Aurel" & "Auron" - from the "Age Of Fire" series
"Kalessin" - Creator of the World Of Earthsea
"Rhaegal" - from "A Song Of Ice And Fire"
"Ahzdeen" - from "The Dragon Prince" series
"Broketail" - from the "Basil Broketail" series
"Shimmergloom" - from R.A. Salvatore's novels
"Komanthodel" - from "A Gathering of Heroes" series
"Bryagh" - from "The Flight Of Dragons" film
"Dolosus" - from the "Timescape" series
"Rremly" - from the novel "Catharsis"
"Makakoa" - Bold, Fierce (Hawaiian)
"Alban" - He Who Is Not Fond Of Company (Latin)
"Poaokela" - Champion, Best (Hawaiian)
"Hafeez" - Protector (Hindu)
"Mâkaha" - Fierce, Ferocious, Savage (Hawaiian)
"Rustam" - Brave Fighter (Hindu)
"Ulanui" - Big Red (Hawaiian)
"Castor" - Chews On Just About Anything! (Greek)
"Menelaus" - The King Of Sparta (Latin)
"Vitas" - Vitality (Latin)
"Zale" - Strength Of The Sea (Greek)
"Magnus" - He Who Is Great (Latin)
"Bronislaw" - Weapon Of Glory (Slavic)
"Jahangir" - King Of The Universe (Hindu)
"Abbatoir" - Slaughterhouse (English)
((I've made other posts with more names from different parts of the world, I'll link if you like
))
