List of Famous people who died at 90

Ronald Samuel Rivlin was a British-American physicist, mathematician, rheologist and a noted expert on rubber.

Nevzad Hanım was the fifth wife of Sultan Mehmed VI of the Ottoman Empire.

Lester Tremayne was a radio, film and television actor.

Leon Kirchner was an American composer of contemporary classical music. He was a member of the American Academy of Arts and Letters and the American Academy of Arts and Sciences, and he won a Pulitzer Prize for his String Quartet No. 3.

John Crawford was an American actor. He appeared in a 1961 episode of The Twilight Zone, called "A Hundred Yards Over the Rim", and in several Gunsmoke episodes. He had a key role in the 1975 film Night Moves, a crime thriller starring Gene Hackman, and played the mayor of San Francisco in 1976's The Enforcer, the third Dirty Harry film featuring Clint Eastwood.

Harry Schultz Vandiver was an American mathematician, known for work in number theory.