Isle-aux-Grues (French for "island of cranes") is an island situated on the Saint Lawrence River, in the municipality of Saint-Antoine-de-l'Isle-aux-Grues, in the Montmagny Regional County Municipality (MRC), in administrative region of Chaudière-Appalaches, in Quebec, in Canada.

However, its dimensions increase to 10 kilometres (6.2 mi) by 4 kilometres (2.5 mi), if including the flats which connect it to Île aux Oies.

[1] It is one of the twenty-one islands which make up the Isle-aux-Grues archipelago.

[2] Children from Isle-aux-Grues attend school in Montmagny, Quebec, travelling by plane each day.

[2] The toponym "Île aux Grues" was made official on December 5, 1968 at the Commission de toponymie du Québec.