Malcolm Le Maistre (born 21 March 1949) is an English musician, experimental artist and theatre director, who was a member of the Incredible String Band in the 1970s.
In 1966, with friend John "Rakis" Koumantarakis, Le Maistre moved to London, where they promoted one of the first concerts by Pink Floyd, and then joined David Medalla's Exploding Galaxy counter-cultural arts and dance troupe.
There, they developed ideas for multi-media artistic experiments, and Le Maistre appeared in the BBC TV Omnibus feature on the ISB album, Be Glad for the Song Has No Ending.
The same year, he established the Stone Monkey dance and mime troupe, and helped develop the stage show U, which provided the basis of the Incredible String Band album of the same name, released in 1970.
He learned to play various musical instruments over the next few months, and contributed as a musician, songwriter and singer to the ISB albums Liquid Acrobat as Regards the Air (1971), Earthspan (1972), No Ruinous Feud (1973), and Hard Rope & Silken Twine (1974).