Sangakiri is a state assembly constituency in Salem district, Tamil Nadu, India. Its State Assembly Constituency number is 87. It comprises Sangagiri taluk and a portion of Omalur taluk. It is a part of the wider Namakkal Lok Sabha constituency for national elections to the Parliament of India. Elections and winners in the constituency are listed below. The constituency has been in existence since the 1957 election. It is one of the 234 State Legislative Assembly Constituencies in Tamil Nadu, in India.
The Kongu Vellalar community has a large number of people in this constituency, followed by the Kongu Vettuva gounder, Vanniyar, Senguntha Mudaliar, Sozhiya Vellalar, Muslim, and Adi Dravida communities.