Cacodemon is a monster of the Doom franchise, resembling a giant, floating head-like creature with demonic traits. It can be referred to:
- Cacodemon, a monster encountered in the classic Doom games; Doom, Doom II, and Final Doom. It also appears in the spin-off Doom RPG.
- Caco-Spectre, a transparent counterpart exclusive in DoomTemplate:'s Sony PlayStation port.
- Malrath, a Cacodemon variant in Doom RPG.
- Wretched, a Cacodemon variant in Doom RPG.
- Cacodemon (Doom 64), a monster encountered in Doom 64.
- Cacodemon (Doom 3), a monster encountered in Doom 3.
- Cacodemon (Doom 2016), a monster encountered in the 2016 Doom reboot.
- Cacodemon (Doom Eternal), a monster encountered in Doom Eternal, the 2016 reboot's sequel.