# Gloom may refer to:
- Gloom, a melancholy, depressing, sadness, darkness, dimness, obscurity, shade or despondent atmosphere
- Gloom, a sullenness, unwilling to talk, showing a ill humor, moody silence, a sour temper, unsociable manner, irritable and unpleasant disposition, somber in tone, color, or portent
- Gloom (card game), a card game designed by Keith Baker and published by Atlas Games
- Gloom (video game), a Doom clone for the Amiga computer
- Gloom (Pokémon), a fictional species in the Pokémon franchise
- Gloom (album), an album by Death Metal band Macabre
- Gloom (comics), a fictional student character in the X-Men comics
- Gloom (Quake 2 modification), a modification for Quake 2
- Gloom (weather condition), fog, covered with clouds, a heavy sky
