List of Famous people who died at 86

Lazar Koliševski was a Yugoslav communist political leader in the Socialist Republic of Macedonia and briefly in the Socialist Federal Republic of Yugoslavia. He was closely allied with Tito.

Harold Eugene "Doc" Edgerton, also known as Papa Flash, was an American scientist and researcher, a professor of electrical engineering at the Massachusetts Institute of Technology. He is largely credited with transforming the stroboscope from an obscure laboratory instrument into a common device. He also was deeply involved with the development of sonar and deep-sea photography, and his equipment was used by Jacques Cousteau in searches for shipwrecks and even the Loch Ness Monster.

Gerhard Albert Ritter was a German historian.

Nils Kristoffer Handal was a Norwegian politician for the Labour Party.

Halton Christian "Chip" Arp was an American astronomer. He was known for his 1966 Atlas of Peculiar Galaxies, which catalogues many examples of interacting and merging galaxies, though Arp disputed the idea, claiming apparent associations were prime examples of ejections. Arp was also known as a critic of the Big Bang theory and for advocating a non-standard cosmology incorporating intrinsic redshift.