Adirampattinam
| Adirampattinam | |
|---|---|
| Coordinates: 10°21′N 79°24′E / 10.350°N 79.400°E | |
| Country | India | 
| State | Tamil Nadu | 
| District | Thanjavur | 
| Taluk | Pattukkottai | 
| Zone | Cauvery Delta | 
| Government | |
| • Type | Municipality | 
| • Body | Adirampattinam Municipality | 
| • Commissioner | M.Sasikumar | 
| Area | |
|  • Total | 12.8 km2 (4.9 sq mi) | 
| Population  (2021) | |
|  • Total | 41,202 (By SIS) | 
| Languages | |
| • Official | Tamil | 
| Time zone | UTC+5:30 (IST) | 
| PIN | 614701 | 
| Telephone code | 04373 | 
| Vehicle registration | TN 49 | 
| Literacy | 88.63% | 
| House of the people - Parliament constituency | Thanjavur | 
| State Assembly constituency | Pattukkottai | 
| Avg. annual rainfall | 1,147 millimetres (45.2 in) | 
Adirampattinam is a municipality in the Pattukottai taluk of the Thanjavur district in the Indian state of Tamil Nadu. It is also known as Adirai in short by the residents. It is the largest coastal town in the district and fourth largest town in the Thanjavur district.
Adirampattinam is an important coastal town connecting Chennai and Thoothukudi via the ECR.