The Greatest Love World Tour was the debut worldwide concert tour by American singer Whitney Houston, in support of her debut studio album Whitney Houston. The four-month tour began in North America on July 26, 1986 at the Merriweather Post Pavilion with an itinerary that included visits in Europe, Japan and Australia.

Whitney Elizabeth Houston was an American singer, actress, film producer, and philanthropist. Known as "the Voice", she is one of the most awarded entertainers of all time and among the best-selling music artists of all time, with sales of over 220 million records worldwide. Houston is known for her crossover appeal on popular music charts that influenced the breaking down of racial barriers, the recording industry, and popular culture, as well as her powerful, soulful vocal performances, the popularization of using gospel singing techniques in pop music, and film production. In 2023, she was ranked second on Rolling Stone's list of the greatest singers of all time. Houston had 11 number-one singles on the Billboard Hot 100 and is the only artist to have seven consecutive number-one singles on the chart. She also enhanced her popularity by entering the film industry. Her accolades include eight Grammy Awards, 22 American Music Awards, two Emmy Awards, and 30 Guinness World Records. Houston's inductions include the Grammy Hall of Fame (twice), the Rock and Roll Hall of Fame, the Rhythm and Blues Music Hall of Fame, the BET Walk of Fame, the Soul Train Hall of Fame, the Georgia Music Hall of Fame, the New Jersey Hall of Fame, and the National Recording Registry at the Library of Congress.