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.

Unicorn is the third studio album by English psychedelic folk band Tyrannosaurus Rex. It was released on 16 May 1969 by record labels Regal Zonophone and Blue Thumb, and was the last Tyrannosaurus Rex album to feature Steve Peregrin Took.