Gamma rays are a form of electromagnetic radiation.

Gamma Ray may also refer to:

• Gamma Ray (band), a German power metal band
• Gamma Ray (EP), extended play recording by Queens of the Stone Age
• "Gamma Ray" (song), by Beck
• "Gamma Ray", a song by the German progressive rock band Birth Control
• "Gamma Ray", a song by Circa Zero from Circus Hero

• Gama (disambiguation)
• Gamma (disambiguation)