Sifi, Seifi, or Saifi (; ; ) can be a given name, a middle name, or a surname. Notable people with the name include:
Given name Sifi Ghrieb, prime minister of Algeria
Middle name Rahman Seifi Azad, Iranian producer
Surname Amari Saifi (born c. 1956) a.k.a. Abou Haidara or Abderrazak le Para, a leader of the Islamist militia Salafist Group for Preaching and Combat (GSPC) Euthymios Saifi (1643–1723), Melkite Catholic bishop of Tyre and Sidon Khalid Saifi (activist), Indian human rights activist Mersad Seifi (born 2003), Iranian football left-back Mokdad Sifi, Algerian politician Mohammad Gulzar Saifi (born 1983), Indian educator and community organizer Mostafa Seifi (born 1985), Iranian football midfielder Nadeem Saifi (born 1954), part of the Indian music production duo Nadeem-Shravan Rafik Saïfi (born 1975), Algerian football player Shahrzad Seifi, Iranian producer and actress Tokia Saïfi (born 1959), French politician and Member of the European Parliament