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Sir Robert Graham (died 1437), Scottish landowner; conspirator in assassination of James I of Scotland •
Robert Graham (colonel) (died 1701), Scottish colonel and Trappist monk •
Robert Graham of Fintry (1749–1815), Scottish laird, patron of poet Robert Burns •
Robert Graham (Wisconsin politician) (1827–1892), American educator •
Robert Graham (sailor) (1841–1919), American Civil War sailor and Medal of Honor recipient •
Robert A. Graham (1912–1997), American Jesuit priest and historian of the Vatican •
Robert Graham (sculptor) (1938–2008), American sculptor • Robert Graham, pen name used by
Joe Haldeman (born 1943), American science fiction author •
Robert Graham (historian) (born 1958), Canadian anarchist historian ==Other uses==