Farhadi (Persian: فرهادی) is an Iranian surname. Notable people with this surname include:
Adib Farhadi (born 1972), Afghan-American academician
Asghar Farhadi (born 1972), Iranian film director and screenwriter
Esmaeil Farhadi (born 1982), Iranian football player
Mohammad Farhadi (born 1949), Iranian physician, politician and government minister
Ravan A. G. Farhâdi (born 1929), Afghani diplomat who was Afghanistan's Ambassador to the United Nations from 1993 to 2006. Also a linguist, researcher and translator
Sarina Farhadi (born 1998), Iranian actress