Gangavalli is a state assembly constituency in Tamil Nadu, India, that was formed after constituency delimitations in 2008. Its State Assembly Constituency number is 81. Located in Salem district, it comprises Gangavalli taluk and a portion of Attur taluk. It is a part of Kallakurichi Lok Sabha constituency for national elections to the Parliament of India. The seat is reserved for candidates from the Scheduled Castes. It is one of the 234 State Legislative Assembly Constituencies in Tamil Nadu in India.