The 1967 International and Universal Exposition or Expo 67, as it was commonly known, was the general exhibition, Category One World's Fair held in Montreal, Quebec, Canada, from April 27 to October 29, 1967. It is considered to be the most successful World's Fair of the 20th century, with the most attendees (50 million visits) to that date and 62 nations participating. It also set the single-day attendance record for a world's fair, with 569,000 visitors on its third day.

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L'Expo 67 de Montréal est une exposition universelle (de catégorie A) tenue en 1967 sur le thème de « Terre des Hommes » (anglais : Man and his World). Ces grandes expositions se tiennent depuis le milieu du XIXe siècle et servent à mettre en valeur les réalisations technologiques et industrielles des pays hôtes.