Feinberg, Feinberger is surname of:

• Aaron Feinberg, American rollerblading champion
• Abraham Feinberg (1899–1986), American rabbi and singer.
• Andrew Feinberg (geneticist)
• Andrew Feinberg (journalist)
• Avshalom Feinberg (1889–1917), a leader of Nili
• Baruch Feinberg (born 1933), Israeli Olympic javelin thrower
• Benjamin F. Feinberg (1888–1959), New York politician
• Charles L. Feinberg (1909–1995), American biblical scholar, first dean of Talbot Theological Seminary
• Israel Lewis Feinberg (1872–1941), New York City coroner
• Gerald Feinberg (1933–1992), American physicist
• Jay Feinberg, American community activist and founder of Gift of Life Marrow Registry
• Joel Feinberg (1926–2004), American philosopher
• John Feinberg, American theologian
• Kenneth Feinberg, American attorney, Special Master of the September 11th Victim Compensation Fund
• Leon Feinberg, (1897–1969) Russian-American Yiddish poet and journalist
• Leslie Feinberg, transgender activist
• Louis Feinberg (1902–1975), birth name of Larry Fine, one of The Three Stooges
• Martin Feinberg, chemist
• Mildred Feinberg (1899–1990), American artist
• Paul Feinberg (1938–2004), American theologian
• Samuel Feinberg (1902–1989), birth name of Sammy Fain, American popular music composer
• Samuil Feinberg, Russian composer and pianist
• Sarah Feinberg (born 1977), American Interim President of the New York City Transit Authority, and former Administrator of the Federal Railroad Administration
• Savely Moiseevich Feinberg (1910–1973), Soviet nuclear physicist, chief engineer of the VVER reactor design.
• Steve Feinberg, founder of Cerberus Capital Management, LP