Aatcheeswarar temple is dedicated to Lord Shiva located near Acharapakkam, Tamil Nadu, and India.

Hence the name of this village came to being as Achu Iru Paagam Meaning- "Axle into two pieces" Later this name eventually became Achirupakkam and then to Acharapakkam.

The town is also famous for the Mazhai Malai Madha Church, which is visited by thousands of Christians every year.

According to locals, in 1969, as severe drought prevailed in the region, a car procession was organised for Mother Mary at the Acharapakkam hill and prayers were offered.

For Christian devotees, a walk up the stairs leading to the top of a small hillock is considered a 'must-do' activity.

Acharapakkam is located along the busy Chennai-Tuticorin National Highway NH32 or GST Road, 3 km from the famous temple town Melmaruvathur.

TNSTC-VPM operates buses between Acharapakkam and major parts of the district, and also to some deep interior villages.