| Harbour Constituency | ||
| MLA Name | Duration | Parties |
| U. Krishna Rao | 1952 | INC |
| U. Krishna Rao | 1957 | INC |
| K. S. G. Haja Sahriff | 1962 | INC |
| H. Baig | 1967 | Independent |
| A. Selvarajan | 1971 | DMK |
| A. Selvarajan | 1977 | DMK |
| A. Rahman Khan | 1980 | DMK |
| M. Karunanidhi | 1984 | DMK |
| M. Karunanidhi | 1989 | DMK |
| K. Anbazhagan | 1991 | DMK |
| K. Anbazhagan | 1996 | DMK |
| K. Anbazhagan | 2001 | DMK |
| Pala. Karuppiah | 2011 | AIADMK |
| P. K. Sekar Babu | 2016 | DMK |
Sekar Babu P K
2021-2026
DMK
Harbour