Flashlight fish is a common name for several fish and may refer to:

• Anomalopidae, a family known as the flashlight fishes, with many species referred to as flashlight fish, especially
  • Anomalops katoptron, from the Pacific Ocean
  • Photoblepharon palpebratum, from the eastern Indian Ocean and the Pacific
  • Photoblepharon steinitzi, from the western Indian Ocean
• Myctophidae, a family sometimes known as flashlight fishes, with some species referred to as flashlight fish
  • Electrona risso (chubby flashlight fish), found in oceans around the world
  • Protomyctophum crockeri, found in the North Pacific
  • Spotted lantern fish (Myctophum punctatum), found in deep waters of the Atlantic and Mediterranean Sea
• Stomiidae, a family with species referred to as flashlight fish
  • Photostomias, found in deep waters