List of Famous people who are 91

Zhu Lin is a retired Chinese politician and economist, and the widow of former Chinese Premier Li Peng.

Richard Morrow Groat is a former two-sport athlete best known as a shortstop in Major League Baseball (MLB). He played for four National League (NL) teams and was named the league's Most Valuable Player in 1960 after winning the batting title with a .325 average for the World Champion Pirates. From 1956 to 1962, he teamed with second baseman Bill Mazeroski to give Pittsburgh one of the game's strongest keystone combinations.

Hans Menasse was an Austrian footballer who played as a right winger. Menasse, who was Jewish, was evacuated to the United Kingdom as a child, where he grew up, beginning his career at Luton Town. He played in two matches for the Austria national team from 1953 to 1954. Menasse died on 28 February 2022, at the age of 91.

Martin Karplus is an Austrian and American theoretical chemist. He is the Director of the Biophysical Chemistry Laboratory, a joint laboratory between the French National Center for Scientific Research and the University of Strasbourg, France. He is also the Theodore William Richards Professor of Chemistry, emeritus at Harvard University. Karplus received the 2013 Nobel Prize in Chemistry, together with Michael Levitt and Arieh Warshel, for "the development of multiscale models for complex chemical systems".