C. G. Viswanathan (born 9 March 1933) was an Indian politician and a former Member of the Tamil Nadu Legislative Assembly. He hailed from Alagesan Nagar in Chengalpattu. Viswanathan received his education at St. Columba's Higher Secondary School in Chengalpattu. He was a member of the Dravida Munnetra Kazhagam (DMK). He served as the president of the Thirukazhukundram Town Panchayat from 1970 and had earlier served as a member of the Chengalpattu Municipality from 1957 to 1961. Viswanathan was elected to the Tamil Nadu Legislative Assembly from the Chengalpattu constituency as a DMK candidate in the 1962, 1967, and 1971 Tamil Nadu Legislative Assembly elections.

Electoral performance Election Constituency Political party Result Vote % Opposition Ref Candidate Political party Vote %1962Chengalpattu50.32%G. Rajarathana Nayagar46.50%1967Chengalpattu62.77%T. Naicker28.73%1971Chengalpattu62.09%S. T. Neelakantan27.07% References