Lorenzi is a surname. Notable people with the surname include:
Benito Lorenzi (1925–2007), Italian football playerGianluca de Lorenzi (born 1972), Italian auto racing driverGiovanni Battista Lorenzi (1721–1807), Italian librettistGrégory Lorenzi (born 1983), French football playerHarri Lorenzi (born 1949), Brazilian agronomic engineerMarie-Laure de Lorenzi (born 1961), French professional golferMilton Lorenzi Haney (1825 – 1922), regimental chaplain in the United States ArmyPaolo Lorenzi (born 1981), Italian professional tennis playerStefano Lorenzi (born 1977), Italian professional football playerStoldo Lorenzi (1534 – after 1583), Italian Mannerist sculptor