Sangagiri or 'Sankari' is a state assembly constituency in Salem district, Tamil Nadu, India.

Its State Assembly Constituency number is 87.

It is a part of the wider Namakkal constituency for national elections to the Parliament of India.

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

Kongu Vellalar community is numerically high in this constituency followed by Vanniyar Gounder, Senguntha Mudaliar, Sozhiya Vellalar, Muslims, and Adi Dravida communities.