Krishna District is a district of India's Andhra Pradesh state. It is named after the Krishna River which flows through the district. The district headquarters are the town of Machilipatnam. The district is bounded by Khammam District to the north, West Godavari District to the east, the Bay of Bengal to the south, Guntur District to the southwest, and Nalgonda District to the northwest.

Vijayawada is the most populated and well known city of this district. Krishna district is also considered as the hub for pre-university education in Andhra Pradesh.Krishna has considerable historic significance. Historic places in the district include Bandar Port, Kondapalli Killa,Gudivada,Ghantasala and Gandhi Hill. Religiously significant places include the Kanaka Durga Temple, Gunadala Matha Shrine, and the Penuganchi Prolu Temple. It is the birth place of significant personalities in this part of the world, including N. T. Rama Rao, Akkineni Nageswara Rao, Pingali Venkaiah, Ayyadevara Kaleswarao, K. L. Rao, Duggirala Gopala Krishna,Kaikala Satyanarayana and Viswanatha Satyanarayana.