List of Famous people who died at 86

Viktor Nikolayevich Leonov was a Soviet Navy officer and twice Hero of the Soviet Union. Considered a legend in the Soviet era after the war, he frequently gave speeches to Communist organizations about the war, but he became obscure after the fall of the Soviet Union.

Caesar Petrovich Korolenko was a Russian psychiatrist. His scientific work was mainly on addictive disorders.

Richard Allen Askey was an American mathematician, known for his expertise in the area of special functions. The Askey–Wilson polynomials are on the top level of the Askey scheme, which organizes orthogonal polynomials of hypergeometric type into a hierarchy. The Askey–Gasper inequality for Jacobi polynomials is essential in de Brange's famous proof of the Bieberbach conjecture.

Paul Danblon was a Belgian composer, opera director and administrator, and journalist. He was one of the pioneers of scientific journalism on RTBF. In 1954, after graduating in chemistry from the Université Libre de Bruxelles, Danblon joined the RTBF current events programme, Carnets de l'Actualité. He went on to specialize in producing and presenting popular science programmes such as La Bouteille à encre, Connaître, and Le point de la médecine. He is the author of two books in the area:

• 150 ans de sciences (1830–1980)
• L'espace

Gerald Wellesley, 7th Duke of Wellington,, styled Lord Gerald Wellesley between 1900 and 1943, was an Anglo-Irish diplomat, soldier, and architect.

Loretto Petrucci was an Italian professional road bicycle racer who won Milan–San Remo in 1952 and 1953.

Alain Daniélou was a French historian, intellectual, musicologist, Indologist, and a noted Western convert to and expert on Shaivite Hinduism.

Mircea Grigore Carol Hohenzollern, also known as Prince Mircea Grigore Carol al României according to his amended Romanian birth certificate or as Carol Lambrino, was the elder son of King Carol II of Romania.

Mai Volfovich Dantsig was a Belarusian artist active during the Soviet era and independence of Belarus. He is considered to have been one of the founders of the contemporary Belarusian art.