Donzère (French pronunciation: [dɔ̃zɛʁ]; Occitan: Donzèra) is a commune of the Drôme department in the Auvergne-Rhône-Alpes region in southeastern France.

It is usually admitted by geographers and climatologists that the Donzère gorge, along about 3 km (1.9 mi), signals the northern boundary of the Mediterranean climate in the Rhône valley.

So, Donzère marked during a long time the northern boundary of the olive groves, but in recent years and consequence of the global warming, this limit seems slightly back northward next to the Cruas gorge, on the north of Montélimar.

Somewhat protected from mistral thanks to its hills located in the north, the village opens on the plain of Tricastin where were born the Mediterranean ambiance and cultivations.

The privileged location of Donzère in the Rhône valley (high place of passage) surely explains its recent economic and demographic dynamism.