| Perumbakkam | |
| Native Name Lang: | ta |
| Settlement Type: | Town |
| Pushpin Map: | India Chennai#Tamil Nadu#India |
| Pushpin Label Position: | left |
| Coordinates: | 12.9053°N 80.1986°W |
| Subdivision Type: | Country |
| Subdivision Name: | India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Chengalpattu |
| Subdivision Type3: | Metro |
| Subdivision Name3: | Chennai |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Tamil |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code: | 600100 |
| Registration Plate: | TN-14 |
Perumbakkam is a suburb of the southern Indian city of Chennai in Chengalpattu district.
It is bound by Sholinganallur to the east, Semmencherry to the south, Medavakkam to the north and Sithalapakkam to the west. It is only a few kilometers from the fast developing IT corridor OMR of Chennai. ELCOT SEZ Campus which hosts major IT service providers like HCL, Wipro, Tech Mahindra, Cognizant among others is closer to Perumbakkam. Perumbakkam is connected to Tambaram through the Velachery-Tambaram road and to Sholinganallur through the Medavakkam-Sholinganallur road.
The Great Trigonometrical Survey, a Survey of India initiative to survey the whole land mass of India was started from the measurement of a small section of plain land with Perumbakkam Hill on the southern end by Major Lambton in 1802 CE.
The Perumbakkam lake spreads over 200acres and is a vital source of water to residents and farmers in Perumbakkam, Vengaivaasal and Sithalapakkam village(s). Nearly 100 families raise vegetables and other crops whenever water is available in the lake.