Pettavaithalai is a panchayat town in Srirangam taluk Tiruchirappalli district in the Indian state of Tamil Nadu.

Balu Mahendra shot his famous second film Aziyatha Kollangal in 27 days at Pettavaithalai, Sirugamani and Inungoor at a modest budget of Rs 8 lacs and released it in 1979.

Pettavaithalai is by the river Cauvery and this is the takeoff point for the Uyyakondan canal which is the major irrigation canal for the fertile lands in Trichy district.

The native language of Pettavaithalai is Tamil Pettavaithalai is part of Srirangam (state assembly constituency) in Tiruchirappalli District of Tamil Nadu State in India.

Sevai Shandhi matriculation school, Pettavaithalai 5 km.