Prakasam District is an administrative district in the state of Andhra Pradesh, in India. The district headquarters is located at Ongole City. Prakasam District is currently a part of the Red Corridor. The Prakasam district was originally constituted on the 2 February 1970, carved out of Guntur, Nellore and Kurnool districts of Andhra Pradesh. It was carved out of three taluks of Guntur District, i.e. Addanki, Chirala and Ongole, four taluks of Nellore district, i.e. Kandukur, Kanigiri, Podili and Darsi and three taluks of Kurnool district i.e. Markapuram, Cumbum and Giddaluru. It is one of the nine districts in the Coastal Andhra region of Andhra Pradesh.
Prakasam District's past stretches back to the days when it was ruled by the Mauryas from 250 B.C. the rise of the Satavahanas saw Buddhism flourish in the region and the construction of several stupas. The Ikshvaku and Vijayanagar Kings,the Kakatiyas, the Qutub Shahis,the Mughals, the Addanki Reddys,the Chundi Rajas, the ongole Samsthanam Kings and the Pellur Rajas later followed these rulers.