Robert Edward Duncan (January 7, 1919 in Oakland, California – February 3, 1988) was an American poet and a devotee of H.D. and the Western esoteric tradition who spent most of his career in and around San Francisco. Though associated with any number of literary traditions and schools, Duncan is often identified with the poets of the New American Poetry and Black Mountain College. Duncan saw his work as emerging especially from the tradition of Pound, Williams and Lawrence. Duncan was a key figure in the San Francisco Renaissance.
Not only a poet, but also a public intellectual, Duncan's presence was felt across many facets of popular culture. Duncan’s name is prominent in the history of pre-Stonewall gay culture and in the emergence of bohemian socialist communities of the 1930s and '40s, in the Beat Generation, and also in the cultural and political upheaval of the 1960s, influencing occult and gnostic circles of the time. During the later part of his life, Duncan's work, published by City Lights and New Directions, came to be distributed worldwide, and his influence as a poet is evident today in both mainstream and avant-garde writing.
Duncan was born in Oakland, California, as Edward Howard Duncan Jr. His mother, Marguerite Pearl Duncan, had died in childbirth and his father was unable to afford him, so in 1920 he was adopted by Edwin and Minnehaha Symmes, a family of devout Theosophists. They renamed him Robert Edward Symmes; it was only after a psychiatric discharge from the army in 1941 that he formed the composite of his previous names and became Robert Edward Duncan.