Cuddalore pronunciation (Tamil: ) is a fast growing industrial city and headquarter of Cuddalore district in the Tamil Nadu state of southern India. Located south of Pondicherry on the coast of Bay of Bengal, Cuddalore has a large number of industries which employ a great deal of the city's population. There are two large divisions in the town of Cuddalore: the Old Town, and the New Town Thirupathiripuliyur. The Gedilam River flows through the town and separates the Old Town from the new one.
The Old Town has been a seaport since ancient times; Cuddalore traded with the Roman Empire approximately 2000 years ago. Archaeological evidence of these ancient trade relationships can be found in the Cuddalore Government Museum in Manjakuppam.