Pattukottai is a state assembly constituency in Tamil Nadu. It is one of the 234 State Legislative Assembly Constituencies in Tamil Nadu, in India. Elections and winners from this constituency are listed below.
As per the 2010 draft electoral rolls released by the election commission, Pattukottai Assembly constituency comprises 1,77,798 voters (85,476 male and 83,902 female). Besides Pattukkottai Municipality, the Assembly segment includes Madukkur Town Panchayat, Adirampattinam Town Panchayat and a number of villages.
Pattukkottai Assembly constituency has been a part of Thanjavur Lok Sabha constituency since the 2008 delimitation. Prior to that, it fell within Pudukkottai Lok Sabha constituency.