Gene Folk (September 7, 1924 - February 28, 2003) was an American ophthalmologist who specialized in the diagnosis and treatment of strabismus. A charter member of the American Association for Pediatric Ophthalmology and Strabismus, he later served as President of this organization. With , Folk helped found the "Chicago" school of strabismus, whose ideas competed with and stimulated those of Marshall M. Parks, , and other prominent strabismologists. During the 1950s and 1960s, Urist and Knapp's contributions led to a much improved understanding of so-called A and V "pattern" strabismus, where the amplitude of deviation varies in up- and downgaze.