Neff is a surname of German (also Naf, Naef, Kneff), Swiss (also Naff, Naffe, Nafe), Czech or Ashkenazi Jewish origin.

Notable people with the surname include:

• Blake Neff, former writer for Fox News
• Charles D. Neff (1922–1991), American Mormon missionary and humanitarian
• Christophe Neff (born 1964), Franco-German geographer
• Donald Neff (1930–2015), American journalist
• Dorothea Neff (1903–1986), Austrian stage and film actress
• Felix Neff (1798–1829), Swiss Protestant divine and philanthropist
• Francine I. Neff (1925–2010), 35th Treasurer of the United States, 1974–1977
• Garrett Neff (born 1984), American fashion model
• Henry H. Neff (born 1973), American author and illustrator
• Jacob H. Neff (1830–1909), American politician; lieutenant governor of California, 1899–1903
• James Neff, American writer and investigative journalist
• Jay H. Neff (1854–1915), American newspaper publisher; mayor of Kansas City, 1904–1905
• Jean-Marie Neff (born 1961), French racewalker
• John Neff (before 1907–1938), American college football coach
• John Neff (investor) (1931–2019), American money manager
• John Neff, American musician
• Kristin Neff (contemporary), American psychologist
• Leonard Neff (1925–2006), American psychiatrist
• Lucas Neff (born 1985), American actor
• Lyle Neff (born 1969), Canadian poet and journalist
• Marcus Neff (1826–1896), American settler in Oregon; respondent in the U.S. Supreme Court case of Pennoyer v. Neff
• Ondřej Neff (born 1945), Czech science fiction writer and journalist
• Pat Morris Neff (1871–1952), American politician from Texas; governor of Texas, 1921–1925
• Prudence Neff (1887–1949), pianist and music teacher based in Chicago
• Thomas Neff (1943–2024), American physicist
• Tom Neff (born 1953), American film executive, director, and producer
• Vladimír Neff (1909–1983), Czech writer and translator
• Wallace Neff (1895–1982), American architect
• Wolfgang Neff (1875–1936), Czech film director

Surname list

This page lists people with the surname Neff.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.