Tozeur (Tunisian Arabic: توزر Tauzar) is the westernmost of the 24 governorates (provinces) of Tunisia and as such bordering Algeria.

Elevations reach above 200 m in the north east extreme being otherwise below 100 m.[4] The uplands to the north attract variable winter and early spring relief precipitation and little other rain.

The area exhibits a hot desert climate (Köppen climate classification BWh) with long, extremely hot summers throughout (see North-south graduation of Tunisian climatic zones) — the patchy and infrequent rainfall in winter is greater than the average for the Sahara Desert of which the area forms part.

One of four arterial roads into Algeria passes through Tozeur along a north-east to south-west axis and the town of Gafsa, a provincial capital to the north before heading due east towards the port and coastal resort city of Sfax.

The other roads of the province are marked as minor, one passing via a long causeway through the Chott el Djerid leading directly to Kebili, Matmata and Medenine.