Arditi is a surname. Notable people with the surname include:
Luigi Arditi (1822–1903), Italian violinist, composer and conductorBinyamin Arditi (1897–1981), Austrian/Bulgarian-Israeli politician, authorEsther Arditi (1937–2003), Israeli soldier, the only woman recipient of the Medal of Distinguished ServicePierre Arditi (born 1944), French actorDani Arditi (born 1951), head of the Israeli National Security Council 2007-2009