List of Famous people who are 75

Martijn Bernard Katan is a Dutch emeritus professor in nutrition at the Vrije Universiteit Amsterdam and author of two popular science books on nutrition.

Howard Waldrop is a science fiction author who works primarily in short fiction.

Hannes Swoboda is an Austrian social democratic politician who served as a Member of the European Parliament from 1996 until 2014. Within the Parliament, he represents the Social Democratic Party of Austria and from January 2012 to June 2014, he was also the President of the group of the Progressive Alliance of Socialists and Democrats.

John Robert Horner is an American paleontologist most famous for discovering and naming Maiasaura, providing the first clear evidence that some dinosaurs cared for their young. In addition to his paleontological discoveries, Horner served as the technical advisor for all the Jurassic Park films, had a cameo appearance in Jurassic World, and served as a partial inspiration for one of the lead characters of the franchise, Dr. Alan Grant. Horner studied at the University of Montana, although he did not complete his degree due to undiagnosed dyslexia, and was awarded a Doctorate in Science honoris causa. He retired from Montana State University on July 1, 2016 although he claims to have been pushed out of the Museum of the Rockies after having married an undergraduate student and now teaches as a Presidential Fellow at Chapman University.

Angelika Volquartz was the mayor of Kiel, Germany from 2003 to 2009. She was Kiel's first female mayor.

Steven Shavell is an economist who is currently Samuel R. Rosenthal Professor of Law and Economics at Harvard Law School. Shavell is the founder and director of the School's John M. Olin Center for Law, Economics, and Business.

Charles Frank Bolden Jr. is a former NASA administrator, a retired United States Marine Corps Major General, and a former astronaut who flew on four Space Shuttle missions.

Jerry Allen Hausman is the John and Jennie S. MacDonald Professor of Economics at the Massachusetts Institute of Technology and a notable econometrician. He has published numerous influential papers in microeconometrics. Hausman is the recipient of several prestigious awards including the John Bates Clark Medal in 1985 and the Frisch Medal in 1980.

Constance Elaine Trimmer Willis, commonly known as Connie Willis, is an American science fiction and fantasy writer. She has won eleven Hugo Awards and seven Nebula Awards for particular works—more major SF awards than any other writer—most recently the "Best Novel" Hugo and Nebula Awards for Blackout/All Clear (2010). She was inducted by the Science Fiction Hall of Fame in 2009 and the Science Fiction Writers of America named her its 28th SFWA Grand Master in 2011.