Cosmic Ray may refer to:
- The ability from Dissidia Final Fantasy and Dissidia 012 Final Fantasy.
- The ability from Final Fantasy Record Keeper.
Cosmic rays are immensely high-energy radiation, mainly originating outside the Solar System. They may produce showers of secondary particles that penetrate and impact the Earth's atmosphere and sometimes even reach the surface. Composed primarily of high-energy protons and atomic nuclei, they are of mysterious origin.