Infinity may refer to:
- The ability from Final Fantasy IV: The After Years.
- The weapon from Final Fantasy X.
- The theme from Final Fantasy XIV: Heavensward.
- The special move from Bravely Default.
- The special move from Bravely Second: End Layer.
- The summon ability from Final Fantasy Legends II.
- The weapon from Final Fantasy Airborne Brigade.
- The Limit Burst from Final Fantasy Brave Exvius.
Infinity is an abstract concept describing something without any limit and is relevant in a number of fields, predominantly mathematics and physics.