The Siege of Tripolitsa or the Fall of Tripolitsa () to Greek rebels in the summer of 1821 marked an early victory in the Greek War of Independence against the Ottoman Empire, which had begun earlier in that year. It is further notorious for the massacre of its Muslim and Jewish population — the Massacre of Tripolitsa, which occurred after the city's fall to the Greek forces. As historian of the war W. Alison Phillips noted, "the other atrocities of Greeks paled before the awful scenes which followed the storming of Tripolitza".