Rizvi or Razavi (Arabic/Urdu: رضوي) is the Urdu variant of the Arabic surname ''Ridawi'' and the Persian surname ''Razavi''. It is a Muslim surname commonly associated with the branch of Husaynids, who claim descent from the Imam Ali al-Rida, a descendant of the Islamic prophetMuhammad through his grandsons, Husayn ibn Ali (patrilinealy, through his great great-grandfather Ali Zayn al-Abidin, who was the son of Husayn) and Hasan ibn Ali (through his great great-grandmother, Fatima bint Hasan, who was the daughter of Hasan). Since the Rizvi clan traces their lineage to Fatimah (the prophet's daughter), many of them often use the prefix Sayyid (or its synonyms) before their name.
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