List of Chief Ministers in Tamil Nadu Since 1920

1. Thiru A Subbarayalu - 17-12-1920 to 11-07-1921

2. Thiru Panagal Raja - 11-07-1921 to 03-12-1926

3. Dr. P Subbarayan - 04-12-1926 to 27-10-1930

4. Thiru P Munuswamy Naidu - 27-10-1930 to 04-11-1932

5. Thiru Ramakrishna Ranga Rao, Raja of Bobbili - 05-11-1932 to 04-04-1936

6. Thiru P T Rajan - 04-04-1936 to 24-08-1936

7. Thiru Ramakrishna Ranga Rao, Raja of Bobbili - 24-08-1936 to 01-04-1937

8. Thiru Kurma Venkata Reddy Naidu - 01-04-1937 to 14-07-1937

9. Thiru C Rajagopalachari - 14-07-1937 to 29-10-1939

10. Thiru Tanguturi Prakasam - 30-04-1946 to 23-03-1947

11. Thiru O P Ramaswamy Reddiyar - 23-03-1947  to 06-04-1949

12. Thiru P S  Kumaraswamy Raja - 06-04-1949  to 09-04-1952

13. Thiru C  Rajagopalachari - 10-04-1952  to 13-04-1954

14. Thiru K Kamaraj - 13-04-1954  to 02-10-1963

15. Thiru M Bakthavatsalam - 02-10-1963  to 06-03-1967

16. Dr. C.N. Annadurai - 06-03-1967  to 03-02-1969

17. Dr. Kalaignar M Karunanidhi 10-02-1969 to  04-01-1971 and 15-03-1971 to       31-01-1976

18. Dr. M G Ramachandran - 30-06-1977 to 17-02-1980, 09-06-1980 to  15-11-1984, 10-02-1985 to 24-12-1987

19. Thirumathi Janaki Ramachandran - 07-01-1988 to  30-01-1988

20. Dr. Kalaignar M Karunanidhi - 27-01-1989 to 30-01-1991

21. Dr. Selvi J Jayalalithaa - 24-06-1991 to 12-05-1996

22. Dr. Kalaignar M Karunanidhi - 13-05-1996 to  13-05-2001

23. Dr. Selvi J Jayalalithaa - 14-05-2001 to  21-09-2001

24. Thiru O. Panneerselvam - 21-09-2001 to  01-03-2002

25. Dr. Selvi J Jayalalithaa - 02-03-2002 to 12-05-2006

26. Dr. Kalaignar M. Karunanidhi - 13-05-2006 to 15-05-2011

27. Dr. Selvi J Jayalalithaa - 16-05-2011 to 27.09.2014

28. Thiru O. Panneerselvam - 29-09-2014 to 22-05-2015

29. Dr. Selvi J Jayalalithaa - 23-05-2015 to 05-12-2016
30. Thiru O. Panneerselvam - 06-12-2016 to 15-02-2017
31. Thiru Edappadi K. Palaniswami - 16.02.2017 onwards