Omega Weapon may refer to:
- The recurring creature and superboss.
- The recurring weapon.
- The ability from Theatrhythm Final Fantasy.
- The ability from Theatrhythm Final Fantasy Curtain Call
Omega (capital: Ω, lowercase: ω; Greek Ωμέγα) is the twenty-fourth and last letter of the Greek alphabet. It is synonymous with a set's end or limit.
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