| Alamathi | |
| Settlement Type: | Village |
| Pushpin Map: | Tamil Nadu#India |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Coordinates: | 13.2111°N 80.1111°W |
| Subdivision Type: | Country |
| Subdivision Name: | India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Thiruvallur district |
| Unit Pref: | Metric |
| Population Total: | 7,424 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
Alamathi is a town in Thiruvallur district, in the southern Indian state of Tamil Nadu.[1] [2] It had a population of 7,424 people distributed in 1,894 households as of 2011. It is part of the Ponneri taluk. [3]