A major antagonist in [[Fate/Grand Order]], appearing only in the Babylonia Singularity of the game and the accompanying anime. The Primordial Mother who created the world, but was betrayed by her children. She went mad out of grief and attempted to replace humanity with a new species called the [[Lahmu (fate)|]].

[spoiler]Introduced as a playable Servant in [[Fate/Grand Order Arcade]], under the Alter Ego class, as [[Larva Tiamat (fate)|]].[/spoiler]
ティアマト ティアマト(Fate) ファム・ファタール(Fate) 提亚马特 提妈