Sigil may refer to:
- The key items needed to power up Celestial Weapons from Final Fantasy X.
- The status effect from Final Fantasy XI.
- The equipment from Final Fantasy XV: Comrades.
A sigil is a symbol used in magic. The term has usually referred to a type of pictorial signature of a demon or other entity; in modern usage, especially in the context of chaos magic, it refers to a symbolic representation of the magician's desired outcome.