Miss Universe 2009, the 58th Miss Universe pageant, was held at the Atlantis Paradise Island, in Nassau (Nassau, Bahamas), Bahamas on August 23, 2009. It was the first time back to back victories in Miss Universe history: Stefania Fernandez of Venezuela, was crowned Miss Universe 2009 by outgoing titleholder Dayana Mendoza. 84 countries and territories competed for the title and the pageant was broadcasted live on NBC and Telemundo. On August 22, Jewel Selver representing Turks & Caicos (Turks and Caicos Islands) withdrew from the pageant due to illness (dehydration). Only 83 contestants competed in the final on August 23.

The presentation show, rehearsals, dress rehearsal and the grand final took place at Imperial Ballroom, the main 3,650 seats convention ballroom, at the Atlantis Paradise Island Resort.