List of Famous people who died at 86

Jakob Mayr was the Austrian prelate, who served as the Auxiliary Bishop of the Roman Catholic Archdiocese of Salzburg from his appointment on 12 May 1971, until his retirement on 15 August 2001. He also remained the bishop emeritus of the Archdiocese of Salzburg until his death in 2010.

Bernhard Reichenbach was a member of the Executive Committee of the Communist International. He was a member of the Communist Workers' Party of Germany and acted as their delegate to the Third Congress of the Third International.

Benjamin Lees was an American composer of classical music.

Leo Ernest Durocher, nicknamed Leo the Lip and Lippy, was an American professional baseball player, manager and coach. He played in Major League Baseball as an infielder. Upon his retirement, he ranked fifth all-time among managers with 2,008 career victories, second only to John McGraw in National League history. Durocher still ranks tenth in career wins by a manager. A controversial and outspoken character, Durocher had a stormy career dogged by clashes with authority, the baseball commissioner, the press, and umpires; his 95 career ejections as a manager trailed only McGraw when he retired, and still ranks fourth on the all-time list.

Raj Chandra Bose was an Indian American mathematician and statistician best known for his work in design theory, finite geometry and the theory of error-correcting codes in which the class of BCH codes is partly named after him. He also invented the notions of partial geometry, association scheme, and strongly regular graph and started a systematic study of difference sets to construct symmetric block designs. He was notable for his work along with S. S. Shrikhande and E. T. Parker in their disproof of the famous conjecture made by Leonhard Euler dated 1782 that there do not exist two mutually orthogonal Latin squares of order 4n + 2 for every n.

Sir Ronald Syme, was a New Zealand-born historian and classicist. Long associated with Oxford University, he is widely regarded as the 20th century's greatest historian of ancient Rome. His great work was The Roman Revolution (1939), a masterly and controversial analysis of Roman political life in the period following the assassination of Julius Caesar.

José María Velasco Ibarra was an Ecuadorian politician. He became president of Ecuador five times, in 1934–1935, 1944–1947, 1952–1956, 1960–1961, and 1968–1972, and only in 1952–1956 did he complete a full term. In his four other terms he was removed by military force, and several times he was installed as president through a military coup.

Gustav Andreas Tammann was a German astronomer and academic. He served as director of the Astronomical Institute of the University of Basel; as a member of the European Space Agency Space Telescope Advisory Team, and as Member of Council of the European Southern Observatory. His research interests include supernovae and the extragalactic distance scale. Tammann was a former President of the International Astronomical Union Commission on Galaxies.

Charles Oscar Brink was a German-Jewish classicist and Kennedy Professor of Latin at Cambridge University.

Richard Evans Schultes was an American biologist. He may be considered the father of modern ethnobotany. He is known for his studies of the uses of plants by indigenous peoples, especially the indigenous peoples of the Americas. He worked on entheogenic or hallucinogenic plants, particularly in Mexico and the Amazon, involving lifelong collaborations with chemists. He had charismatic influence as an educator at Harvard University; several of his students and colleagues went on to write popular books and assume influential positions in museums, botanical gardens, and popular culture.