K. A. Krishnaswamy (24 March[citation needed] 1932 – 18 May 2010) was an Indian politician and minister in the Government of Tamil Nadu. He was the younger brother of K.A. Murugesan, a DK leader and K. A. Mathiazhagan, a founding leader of the Dravida Munnetra Kazhagam (DMK). He was the third person from the Kaniyur family to enter politics. Initially he belonged to the DMK and was a member of the Rajya Sabha.
In 1972 when M. G. Ramachandran (M.G.R.) joined the All India Anna Dravida Munnetra Kazhagam (AIADMK), he joined the party as the second member. Krishnaswamy was the first organising secretary of the AIADMK and was the owner and editor of the Thennagam daily newspaper, which subsequently became the official organ of the AIADMK. He gave the title of Puratchi Thalaivar (Revolutionary Leader) to M.G.R.
During 1978–87, he held portfolios such as cooperation, small industries, dairy development and local administration in Ramachandran's cabinet. During 1991–96 he was the minister for law in J. Jayalalithaa's cabinet. He retired from active politics in 1996.[1][2][3][4][5]