The Gave d'Oloron (French pronunciation: [ɡav dɔlɔʁɔ̃]) is a river of south-western France near the border with Spain.

The river is 148 kilometres (92 mi) long, including its source rivers Gave d'Ossau and Gave du Brousset.

[1] Near Sauveterre-de-Béarn it takes up its largest tributary, the Saison.

The Gave d'Oloron flows through the following départements and towns:

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