Quantum mysticism refers to the practice of selectively borrowing ideas from quantum physics to support New Age and pseudoscientific beliefs, or to draw metaphorical similarites between principles in quantum physics and principles in Eastern mysticism. are pejorative synonyms used by skeptical scientists to discount the idea that quantum theory supports mystical beliefs.

Critics such as science fiction writer Greg Egan and commentator Margaret Wertheim, along with many scientists, have opined that quantum physics is being hijacked by people with little understanding of the underlying concepts, and whose claims lack the intellectual rigour intrinsic to scientific inquiry.