Senthamangalam is a state assembly constituency in Tamil Nadu, India, that was formed after constituency delimitations in 2007.

The seat is reserved for candidates from the Scheduled Tribes and comprises portions of the Rasipuram and Namakkal taluks.

It is a part of the wider Namakkal 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.

Prior to the 2007 demilitarisation exercise, the local constituency was called Sendamangalam.