Peter Allen Greenbaum (29 October 1946 – 25 July 2020), known professionally as Peter Green, was an English blues rock singer-songwriter and guitarist who was the founder and original leader of the band Fleetwood Mac. Green formed the group in 1967 after a stint in John Mayall's Bluesbreakers and quickly established the new band as a popular live act in addition to a successful recording act, before departing in 1970.

Green's songs, such as "Albatross", "Black Magic Woman", "Oh Well", "The Green Manalishi (With the Two Prong Crown)" and "Man of the World", appeared on singles charts and several have been adapted by a variety of musicians. Green was a major figure in the "second great epoch" of the British blues movement. Eric Clapton praised his guitar playing and B.