Panchkula district (హిందీ: पंचकुला़ जिला; పంజాబీ: ਪੰਚਕੂਲਾ ਜ਼ਿਲ੍ਹਾ) was formed as the 17th district of Haryanastate in India. As formed 15 August 1995, it comprises two sub divisions and two Tehsils named Panchkula and Kalka. It has 264 villages out of which 12 villages are un-inhabited and 10 villages wholly merged in towns or treated as census towns according to census 1991. There are five towns in the district named Barwala, Kalka, Panchkula, Pinjore and Raipur Rani. Total population of the district is 319398 out of which 173557 are males and 145841 are females.
As of 2011 it is the least populous district of Haryana (out of 21).
Panchkula city is the headquarters of this district. Chandimandir Cantonment is located in this district, adjoining the Panchkula Urban Estate.