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:
- Haute-Garonne: Le Fousseret, Peyssies, Lavernose-Lacasse, Muret.
It flows into the Garonne at Muret.