Peretti is an Italian or Corsican surname. Notable people with the surname include:

• Achille Peretti (artist) (1857–1923), Italian painter, sculptor and anarchist

• Achille Peretti (1911–1983), French politician

• Aldo Maria Brachetti Peretti (1932–2025), chairman of the Italian company API Group

• Alessandro Peretti di Montalto (1571–1623), Italian Catholic Cardinal

• Carlo Peretti (1930–2018), Italian water polo player

• Chelsea Peretti (born 1978), American writer and comedian

• Cynthia Peretti (1948−2009), American wrestler and trainer, known as "Princess Jasmine"

• Diego Peretti (born 1963), Argentine actor and psychiatrist

• Elsa Peretti (1940–2021), Italian jewellery designer

• Felice Peretti (1521–1590), Pope Sixtus V

• Ferdinando Brachetti Peretti (born 1960), chairman and CEO of API Group

• Flavia Peretti (1574–1606), Duchess of Bracciano and niece of Felice Peretti

• Francesco Peretti di Montalto (1597–1655), Italian Catholic cardinal

• Frank Peretti (born 1951), American novelist

• Hugo Peretti (1916–1986), American songwriter and record producer

• Jacques Peretti (born 1967), investigative reporter, broadcaster and filmmaker

• Jean-Marie Peretti (born 1946), French teacher-researcher in human resources management

• Jonah Peretti (born 1974), American Internet entrepreneur

• Lucia Peretti (born 1990), Italian short-track speed-skater

• Marianne Peretti (1927–2022), Franco-Brazilian artist

• Osvaldo Peretti (1921–?), Argentine footballer

• Patrice de Peretti (1972–2000), better known as Depé, French association football supporter

• Pietro Perti or Peretti (1648–1714), Italian Baroque sculptor and architect

• Roberto Peretti (born 1966), Italian short track speed skater

• Ugo Brachetti Peretti (born 1965), Italian oil executive

• Vanessa Peretti (born 1986), model and Miss Venezuela International 2006