List of Famous people who are 90

Constance Morella is an American politician and diplomat. She represented Maryland's 8th congressional district in the United States House of Representatives from 1987 to 2003. She served as Permanent Representative from the U.S. to the Organisation for Economic Co-operation and Development (OECD) from 2003 to 2007. She is on American University's faculty as an Ambassador in Residence for the Women & Politics Institute. She was appointed to the American Battle Monuments Commission (ABMC) by President Barack Obama in 2010.

David Morris Lee is an American physicist who shared the 1996 Nobel Prize in Physics with Robert C. Richardson and Douglas Osheroff "for their discovery of superfluidity in helium-3." Lee is professor emeritus of physics at Cornell University and distinguished professor of physics at Texas A&M University.

Robert Clifford Gunning is a professor of mathematics at Princeton University specializing in complex analysis, who introduced indigenous bundles.

Sir Roy Yorke Calne, FRCP, FRCS, FRS is a British surgeon and pioneer in organ transplantation.

Stanley Deser is an American physicist known for his contributions to general relativity. Currently, he is emeritus Ancell Professor of Physics at Brandeis University in Waltham, Massachusetts and a Senior Research Associate at California Institute of Technology.