| Annamalai Nagar | |
| Settlement Type: | Town |
| Pushpin Map: | India Tamil Nadu |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Coordinates: | 11.3967°N 79.7161°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Cuddalore |
| Unit Pref: | Metric |
| Population Total: | 8974 |
| Population As Of: | 2001 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Tamil |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 608002 |
| Area Code Type: | Telephone code |
| Area Code: | 04144 |
| Registration Plate: | TN-91(TN-31 till Jun17,2015) |
Annamalai Nagar is a special grade Panchayat town in Cuddalore district in the state of Tamil Nadu, India. The town is named after Annamalai Chettiar, an Indian businessperson, educationist and philanthropist. The Annamalai University, founded by him, is located in Annamalai Nagar.
Chidambaram is the nearest train station and bus terminus.
's India census,[1] Annamalai Nagar had a population of 16289 of which 8646 are males and 7643 are females. The literacy rate of Annamalai Nagar city is 95.22%, higher than the state average of 80.09%, In Annamalai Nagar, Male literacy is around 97.53% while the female literacy rate is 92.59%. Panchayat has total administration of over 2,445 houses to which it supplies basic amenities like water and sewerage.