In the fictional universe of Warhammer 40,000, Nurgle is the god of disease, decay and consistancy. He is the oldest of the four chaos gods and is the most involved with the plights of mortals. Many of those affected by his poxes usually turn to him in order to escape the pain caused by sickness. The physical likeness of Nurgle is described as a giant wormlike creature with a gaping, fang filled maw and thousands of open wounds. The traitorous Death Guard Chaos Space Marine Legion serve him solely. Nurgle's Daemons are Nurglings, Plauge Bearers, Beasts of Nurgle and Great Unclean Ones. Nurglings resemble Orkish Snotlings (with the exception of being disease ridden), Plauge Bearers are of vaugely humanoid appearance, Beasts of Nurgle looks like giant slugs with lots of tentackles while Great Unclean Ones are massive, bloated disease carriers. Nurgle's anti-thesis is Tzeentch, the Lord of Change.

Nurgle's sacred number is seven.

The inspiration to Nurgle comes from the Babylonian god Nergal