Parc Jean-Drapeau (formerly called Parc des Îles) is situated to the east of downtown Montreal, Quebec, Canada, in the Saint Lawrence River. It comprises two islands, Saint Helen's Island and the artificial island Notre Dame Island.
The islands were the site of the Expo 67 World's Fair. Notre Dame Island was constructed for the exposition, and Saint Helen's Island artificially extended at its north and south ends. The park was renamed in honour of Jean Drapeau, the late mayor of Montreal and initiator of Expo 67.