Katzir is a surname. Notable people with the surname include:
Abraham Katzir (born 1941), Israeli physicist Aharon Katzir (1914–1972), Israeli biophysicist Ephraim Katzir (1916–2009), Israeli biophysicist, politician and President of Israel Hanna Katzir (1948–2024), Israeli kindergarten teacher and hostage survivor Mor Katzir (born 1980), Israeli model Nina Katzir (1914–1986), Israeli teacher, wife of Ephraim
See also Katzir (disambiguation)