Bonnie MacLean is an American artist. In the late 1960's she created posters and other art for rock and roll concerts managed by Bill Graham, using the iconic psychedelic style of the day.
Bonnie MacLean was born in Philadelphia, and graduated from Penn State University in 1960.  She moved to NY in 1960 where she worked at the Pratt Institute and took drawing classes in the evenings. MacLean moved to San Francisco in 1964, where she met Bill Graham, who became famous as the promoter of rock concerts, at her office job there. 
Artist Wes Wilson was the main poster artist for the Fillmore Auditorium when he and Bill Graham had a "falling out" and Wilson quit. MacLean had been painting noticeboards at the auditorium in the psychedelic style, and took up the creation of the posters after Wilson left, creating about thirty posters, most in 1967. Thirty of her posters are listed in the collection of the Brooklyn Museum.  and two of her posters are in the collection of the San Francisco Museum of Modern Art.
She married Bill Graham, the concert promoter, in the 1967. They divorced in 1975. They had one child. MacLean returned to Pennsylvania in 1972, and married artist Jacques Fabert. She lives in Bucks County, Pennsylvania.
- Morsch, Mike (September 24, 2015). "A True Rock Artist: Rock poster legend Bonnie MacLean has created a new work for the Fillmore Philly". centraljersey.com. Packet Media Group. Retrieved 13 April 2016.
- Bonnie MacLean AllMusic Profile