Butterfly is the seventh UK studio album by British band the Hollies, released in November 1967. It was the final Hollies album to feature Graham Nash before his departure from the group in 1968. The album consisted solely of songs written by the trio of Nash, Allan Clarke, and Tony Hicks, with Nash leading the sessions. It showcased the band's pop-oriented approach to psychedelia.

The Hollies are an English rock and pop band formed in 1962. One of the leading British groups of the 1960s and into the mid-1970s, they are known for their distinctive three-part vocal harmony style. Allan Clarke and Graham Nash founded the band as a Merseybeat-type group in Manchester, although some of the band members came from towns further north, in east Lancashire. Nash left the group in 1968 to form Crosby, Stills & Nash, though he has reunited with the Hollies on occasion.