Psychedelic folk is a loosely defined form of psychedelia that originated in the 1960s. It retains the largely acoustic instrumentation of folk, but adds musical elements common to psychedelic music.

Psychedelic music is a wide range of popular music styles and genres influenced by 1960s psychedelia, a subculture of people who used psychedelic drugs such as DMT, LSD, mescaline, and psilocybin mushrooms, to experience synesthesia and altered states of consciousness. Psychedelic music may also aim to enhance the experience of using these drugs and has been found to have a significant influence on psychedelic therapy.