The Gimone (; ) is a river in south-western France, left tributary of the Garonne. Its source is in the foothills of the Pyrenees, near Lannemezan. It flows north through the following départements and towns:

Hautes-Pyrénées Gers: Saramon, Gimont Tarn-et-Garonne: Beaumont-de-Lomagne

The Gimone flows into the Garonne near Castelsarrasin.

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