Eternal Light or eternal light may refer to
- Sanctuary lamp, shines before the altar of religious sanctuaries
- The Eternal Light, 1944–89 NBC radio program on Jewish themes
- Eternal Light (video game), formerly titled Witches, combat game developed by Revistronic, cancelled in 2011
- Eternal light mushroom (Mycena luxaeterna) bioluminescent fungus
- Eternal Light Flagstaff, 1923 monumental flagstaff in Madison Square, Manhattan, New York
- Eternal Light Peace Memorial, 1938 Gettysburg Battlefield monument
- Palace Theater Light, an incandescent light bulb in Fort Worth, Texas, continuously operating since 1908