List of Monuments of National Importance in Tamil Nadu

This is a list of Monuments of National Importance (ASI) as officially recognized by and available through the website of the Archaeological Survey of India in the Indian state Tamil Nadu. The monument identifier is a combination of the abbreviation of the subdivision of the list (state, ASI circle) and the numbering as published on the website of the ASI. 413 Monuments of National Importance have been recognized by the ASI in Tamil Nadu.

List of monuments
The list of Monuments of National Importance for Tamil Nadu is subdivided in two circles:
 * Chennai
 * List of Monuments of National Importance in Chennai circle
 * List of Monuments of National Importance in Kanchipuram district
 * List of Monuments of National Importance in Pudukkottai district
 * Thrissur
 * List of Monuments of National Importance in Thrissur circle