| S. Sadasivam | |
| Office: | Member of the Madras State Assembly |
| Constituency: | Aravakurichi |
| Term: | 1957 - 1962 1962 - 1967 |
| Term1: | 1977 - 1982 |
| Successor: | N. Rathina Gounder |
| Predecessor1: | P. Ramasamy |
| Successor1: | Abdul Jabbar |
| Constituency1: | Aravakurichi |
| Party: | Indian National Congress |
S. Sadasivam was an Indian politician and former Member of the Legislative Assembly of Tamil Nadu. He was elected to the Tamil Nadu legislative assembly as an Indian National Congress candidate from Aravakurichi constituency in 1957, 1962, and 1977 elections.[1] [2] [3]