Kanchipuram district is a district in the northeast of the state of Tamil Nadu in India. It is bounded in the west by Vellore District and Thiruvannamalai District, in the north by Thiruvallur District and Chennai District, in the south by Viluppuram District and in the east by the Bay of Bengal. It lies between 11° 00' to 12° 00' latitudes and 77° 28' to 78° 50' longitudes. The district has a total geographical area of and coastline of . The town of Kanchipuram is the district headquarters. It is the third most populous district of Tamil Nadu (out of 32), after Chennai and Coimbatore. The Chennai International Airport is located in Tirusulam in Kanchipuram district.
The district produces over 15,000 engineering graduates every year, same as Gujarat state.