Chengalpattu (Tamil: செங்கல்பட்டு Ceṅkalpaṭṭu [ tʃeŋɡəlpaʈ ː ɯ ]; formerly anglicized Chingleput, Chinglepet or Chingelpet ) is a city in the north of the southern Indian state of Tamil Nadu.

It lies on the River Palar in Kanchipuram district, 33 kilometers south-east of the district capital, Kanchipuram and around 50 kilometers southwest of Chennai ( Madras). The population is around 63,000 ( 2011 census ). Chengalpattu is an important railway junction and industry center. The city has a medical and other educational institutions that belong to the University of Madras.