Feinberg, Feinberger is surname of:
- Aaron Feinberg, American rollerblading champion
- Avshalom Feinberg (1889 – 1917), a leader of Nili
- Benjamin F. Feinberg (1888 – 1959), NY politician
- Charles L. Feinberg (1909 - 1995), American biblical scholar, first dean of Talbot Theological Seminary
- Israel L. Feinberg, Manhattan coroner
- Gerald Feinberg, American physicist
- Joel Feinberg (1926 – 2004), American philosopher
- John Feinberg, American theologian
- Kenneth Feinberg, American attorney, Special Master of the September 11th Victim Compensation Fund
- Leslie Feinberg, transgender activist
- Martin Feinberg, chemist
- Louis Feinberg, pseudonym Larry Fine (1902 – 1975), one of The Three Stooges
- Paul Feinberg (1938 - 2004), American theologian
- Samuel Feinberg, pseudonym Sammy Fain (1902 – 1989), American popular music composer
- Samuil Feinberg, a Russian composer and pianist
- Steve Feinberg, founder of Cerberus Capital Management, LP