Flexner is a surname. Notable people with the surname include:
Anne Crawford Flexner (1874–1955), American playwright Abraham Flexner (1866–1959), American educator, author of the Flexner Report Bernard Flexner (1882–1946), New York lawyer, prominent member of the Zionist Organization of America Eleanor Flexner (1908–1995), independent scholar and pioneer in the field of women's studies James Thomas Flexner (1908–2003), prolific writer on American art history, wrote a four-volume biography of George Washington Jennie Maas Flexner (1882–1944), librarian and author Josefa B. Flexner (1903–2000), Spanish scientist Louis B. Flexner (1902–1996), American biochemist Simon Flexner (1863–1946), physician, scientist, administrator, and professor of experimental pathology at the University of Pennsylvania Stuart Berg Flexner (1928–1990), lexicographer, editor and author, noted for his books on the origins of American words and expressions
See also Boies, Schiller & Flexner, American law firm founded by David Boies and Jonathan D. Schiller in 1997 Flexner Report, book-length study of medical education in the United States and Canada written by Abraham Flexner, published in 1910 Flexner-Wintersteiner rosette, a spoke and wheel shaped cell formation seen in retinoblastoma and certain other ophthalmic tumors