E'ilor is a creature from the H.P. Lovecraft-inspired Cthulhu Mythos.
Dwelling in a vast cavern beneath a rural farming village in the United Kingdom, not much is known about the being known as E'ilor save for what is briefly mentioned in the occult texts The Revelations of Gla'aki. What is known is that it shares many similarities with the Green God; both appear to be composed entirely of vegetable matter, are capable of extruding vine-like tentacles to capture their victims, and both offer some kind of perverse communion to their depraved cults. These two entities also inhabit subterranean lairs in the same region of England, the Severn Valley.