K. A. Sengottaiyan (born 9 January 1948) is an Indian politician. He is the former Minister for School Education in the Government of Tamil Nadu. He also served as the party presidium chairman of the All India Anna Dravida Munnetra Kazhagam and Deputy Leader of the Opposition in Tamil Nadu legislative assembly. He is currently the longest serving ADMK MLA along with his opposition counterpart Duraimurugan. From 2001 to 2012, He served as the headquarters secretary of the All India Anna Dravida Munnetra Kazhagam.