What does it mean to dream about poltergeist?
A poltergeist in a dream often pictures a disturbance you cannot see the source of, anger or unease that moves things around your life without showing its face.
Four ways to read it
Each reading below comes from a named tradition and a cited source, so you can see where it came from and decide what fits your dream.
Freud
Freud would read the unseen force throwing objects as repressed feeling that finds no direct outlet and so acts out sideways. The disorder in the house may stand for disorder you will not name. Ask what in you is making noise without being looked at.
After Freud, The Interpretation of Dreams (Brill trans., 1913), public domain.Jung
Jung might see the poltergeist as energy split off from the conscious self, returning as chaos when it is denied. The haunted house is often the psyche itself. The dream may ask what you have shut in a back room that now wants attention.
Jungian concept (our summary).Modern
Threat-simulation theory suggests the dreaming mind stages a danger that cannot be confronted, an apt match for stress whose cause feels hidden. Recent unease in your home or relationships may feed the image. Notice what the disturbance kept you from settling into.
Threat-simulation theory (our summary).Mythological
Tales of noisy, unseen spirits run through folklore everywhere, blamed for rattling doors and broken crockery. They tend to gather where a household holds tension. The story usually points less to the ghost than to the trouble it marks.
Rosmerta Publishing editorial synthesis (after Frazer; Brewer).