Farb is a surname. Notable people with the surname include:
Benson Farb (born 1967), American mathematician Carolyn Farb, American fundraiser Nathan Farb (1942–2026), American photographer Nicole Farb, American entrepreneur and business executive Peter Farb (1929–1980) American anthropologist and author of popular science books Sara Farb, Canadian actress and playwright
See also Jo Farb Hernández, U.S.- and Spain-based curator Farb (reenactment), a derogatory term in the hobby of historical reenactments