Gummidipoondi is an industrial town in Chennai Metropolitan Region of Thiruvallur district in the Indian state of Tamil Nadu.

Notably, it is the northernmost assembly constituency and settlement in the state of Tamil Nadu.

Tamil is the official language for the people of Gummidipoondi town.

Gummidipoondi lies on the National Highway 16 (India) from Chennai to Calcutta, which is a part of Golden Quadrilateral project.

Various buses pass through GNT road from Tirupathi, Nellore, Sulurpet to Madhavaram inter city bus terminus.