Cthaat image
Cthaat, also known as The Dark Water God, is a Great Old One from the H.P. Lovecraft-inspired Cthulhu Mythos.


Virtually knothing is known about the entity named Cthaat. Whilst belonging to the group called the Great Old Ones, it is in actuality little more than an enormous elemental mass of shapeshifting water, seemingly without intelligence, and desiring only contact with other living beings.


  • The Philosopher's Stone (1969), by Colin Wilson.
  • Dead Leaves Fall (2011), by Simon Yee.