Chengam is a state assembly constituency in Tiruvannamalai district in Tamil Nadu, India.

[2] Its State Assembly Constituency number is 62.

The seat is reserved for candidates from the Scheduled Castes and comprises a portion of Chengam taluk.

It is a part of Tiruvannamalai Lok Sabha constituency for national elections to the Parliament of India.

[3] It is one of the 234 State Legislative Assembly Constituencies in Tamil Nadu, in India.