Ottapidaram is one of the 234 state legislative assembly constituencies in Tamil Nadu in southern India. It is also one of the six state legislative assembly constituencies included in Thoothukkudi Lok Sabha constituency. It is one of the oldest assembly segments in Tamil Nadu, having existed since the 1962 election.
Veeranattar Pallar (Kudumbar), Seevandhi Pallar communities are numerically high in this constituency.