Miasma

Miasma or miasm may refer to:

• Miasma (ancient Greek religion), a contagious power that has an independent life of its own

• Miasma theory, an obsolete medical theory that held that diseases were caused by a noxious form of "bad air"
• Miasm (homeopathy), an "infectious principle" underlying chronic disease and "peculiar morbid derangement of vital force"

• Miasma (album), a 2005 album by the Black Dahlia Murder
• Miasma (EP), a 2001 EP by Hecate Enthroned
• Miasma, a 1987 album by the Bevis Frond
• "Miasma" (Ghost song), 2018