Niğde Province (Turkish: Niğde ili) is a province in the southern part of Central Anatolia, Turkey. Its area is 7,234 km, and its population is 365,419 (2022) of which 170,511 live in the city of Niğde. The population was 348,081 in 2000 and 305,861 in 1990. Neighbouring provinces are Kayseri, Adana, Mersin, Konya, Aksaray and Nevşehir.
The province is surrounded on three sides by mountain ranges: the Taurus Mountains, Mount Hasan, and the Melendiz Mountains.