| Poondi | |
| Settlement Type: | village |
| Pushpin Map: | India Tamil Nadu#India |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Coordinates: | 13.2097°N 79.8789°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Tiruvallur |
| Governing Body: | Poondi Panchayat Union |
| Unit Pref: | Metric |
| Population Total: | 4090 |
| Population As Of: | 2001 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Tamil |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Registration Plate: | TN-20 |
| Blank1 Name Sec1: | Coastline |
| Blank1 Info Sec1: | 0km (00miles) |
| Blank2 Name Sec1: | Nearest city |
| Blank2 Info Sec1: | Tiruvallur |
| Blank3 Name Sec1: | Sex ratio |
| Blank3 Info Sec1: | 1163 ♂/♀ |
| Blank4 Name Sec1: | Literacy |
| Blank4 Info Sec1: | 69.82% |
| Blank5 Name Sec1: | Lok Sabha constituency |
| Blank5 Info Sec1: | Tiruvallur |
| Blank6 Name Sec1: | Civic agency |
| Blank6 Info Sec1: | Poondi Panchayat Union |
Poondi is a village in the Thiruvallur taluk of Tiruvallur district, Tamil Nadu, India. It has a fresh water lake to cater the daily needs of water for Chennai City. The place is also known for Oondreswarar Temple, which was displaced to its current location to ease the construction of the reservoir.
As per the 2001 census, Poondi had a total population of 4090 with 1891 males and 2199 females.[1]