Cu Sith is a character in Final Fantasy XII: Revenant Wings. The Master Artificer, she is Tomaj's self-proclaimed apprentice, though Tomaj refers to her as "it". Cu Sith will set up a synthesis shop onboard the Galbana and helps the player craft new items out of raw materials.

As she points out, her name is a misnomer, equivalent to calling a hume "Hume".