The Louge (; ) is a long river in southwestern France, left tributary of the Garonne. Its source is in the département of Hautes-Pyrénées, near Lannemezan.

It flows generally north-northeast through the following départements and towns: Hautes-Pyrénées: Haute-Garonne: Le Fousseret, Peyssies, Lavernose-Lacasse, Muret.

It flows into the Garonne at Muret.

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