Bezm-i Âlem Valide Sultan (fully Devletlu İsmetlu Bezmiâlem Valide Sultan Aliyyetü'ş-Şân Hazretleri; 1807 – 2 May 1853) (Bezm-î Âlem or Bazim-î Âlam, meaning "feast of the world") was the second wife of Ottoman Sultan Mahmud II, and the mother of Sultan Abdülmecid I of the Ottoman Empire.