Kunnathur is a panchayat town in Tirupur district in the Indian state of Tamil Nadu.

Kunnathur is famous for producing compressors and loaders, and for its borewells.

Kunnathur is generally known as Aathi Kunnathur ("aathi" refers to "ancient") or Air-tech city or Bore-well city in the Kongu nadu region.

Kunnathur is home to a historic Lakshmi Narayanan Temple built by the Chera Dynasty in the 12th century.

The buses from Tirupur to Erode pass through Kunnathur with a one-minute stop.