Chikkaballāpura district is a district in the southern Indian state of Karnataka. On 23 August 2007, it was carved out of the pre-existing Kolar district, which was the fourth largest district (before bifurcation) of Karnataka, by moving the talukas of Gauribidanur, Gudibande, Bagepalli, Chikballapur, Manchenahalli, Chelur, Sidlaghatta and Chintamani into the new district. Kannada is the official language.
The town of Chikballapur is the district headquarters and a key transport link in the North Bangalore area. The north-south six-lane National Highway (NH44) as well as the East-West Highway 69 go through the district. A rail line runs north from Bangalore to the town of Chikballapur, east past Doddaganjur to Srinivaspur and south to the town of Kolar.