Pinnaiyur is a village in Thanjavur district of the Indian state of Tamil Nadu.

The literacy rate is around 90% which is comparatively higher than any other village in Thanjavur district.

Pinnaiyur has prominent members in the field of Medicine, Engineering, Law, Research, Arts and Science, Politics, Sports, Agriculture.

Panguni uthiram is a famous festival during summer season followed by 10 days cultural events.

The festival celebrated in this historical village is very famous for its Chariot, lifted manually and carried on the shoulders of the brave people of Pinnaiyur for around 30 km by tremendous, virtually unstoppable force.