Chandrika Bandaranaike Kumaratunga , commonly referred to by her initials CBK, is a Sri Lankan politician who served as the fourth executive president of Sri Lanka, from 12 November 1994 to 19 November 2005. She previously served as the prime minister from August to November 1994 and the chief minister of the Western Province from 1993 to 1994. She is the country's first and only female president to date and the country's second female prime minister. She was the leader of the Sri Lanka Freedom Party (SLFP) until the end of 2005.

The president of Sri Lanka is the head of state and head of government of the Democratic Socialist Republic of Sri Lanka. The president is the chief executive of the union government and the commander-in-chief of the Sri Lanka Armed Forces.