| St. Thomas Mount | |
|---|---|
| Former constituency No. 16 for the Tamil Nadu Legislative Assembly | |
 Dr. M. G. Ramachandran - only M.L.A. from this constituency | |
| Constituency details | |
| Country | India |
| Region | South India |
| State | Tamil Nadu |
| District | Chingleput |
| Established | 1967 |
| Abolished | 1976 |
| Total electors | 163,527 |
| Reservation | None |
The St. Thomas Mount Assembly constituency was one of the 234 state legislative assembly constituencies in Tamil Nadu, a state in southern India. It was in existence for the 1967 and 1971 assembly elections. At that time, this constituency was represented only by the former chief minister of Tamil Nadu M. G. Ramachandran. Later, it was merged with the Alandur assembly constituency from the 1977 assembly election.