| Katthivakkam | |
| Other Name: | ennore |
| Settlement Type: | Neighbourhood |
| Pushpin Map: | India Chennai#Tamil Nadu#India |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in Chennai (North), Tamil Nadu, India |
| Coordinates: | 13.2046°N 80.3167°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Chennai |
| Subdivision Type3: | Taluk |
| Subdivision Name3: | Tiruvottiyur |
| Subdivision Type4: | Metro |
| Subdivision Name4: | Chennai |
| Subdivision Type5: | Local body |
| Subdivision Name5: | Greater Chennai Corporation |
| Subdivision Type6: | Other neighbourhoods |
| Subdivision Name6: | Ennore, Periya Kuppam |
| Unit Pref: | Metric |
| Elevation M: | 13 |
| Population Total: | 36,617 |
| Population As Of: | 2011 |
| 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: | 600057 |
| Registration Plate: | TN-18 |
Katthivakkam is an residential and industrial area located in the northern part of Chennai. It is a part of zone 1 in Greater Chennai Corporation. It is under Thiruvottiyur taluk in Chennai district. It is a part of Thiruvottiyur(state assembly constituency) and Chennai North (Lok Sabha constituency). Formerly a town and a municipality of Thiruvallur district in the Indian state of Tamil Nadu, it has now been absorbed by Chennai city in September 2011 and within Chennai District limit since January 2018.[1] The neighbourhood is served by Katthivakkam railway station. As of 2011, the town had a population of 36,617.
According to 2011 census, Kattivakkam had a population of 36,617 with a sex-ratio of 983 females for every 1,000 males, much above the national average of 929.[2] A total of 4,301 were under the age of six, constituting 2,194 males and 2,107 females. Scheduled Castes and Scheduled Tribes accounted for 15.62% and .37% of the population respectively. The average literacy of the town was 74.5%, compared to the national average of 72.99%.[2] The town had a total of : 9354 households. There were a total of 13,273 workers, comprising 17 cultivators, 49 main agricultural labourers, 201 in house hold industries, 10,613 other workers, 2,393 marginal workers, 4 marginal cultivators, 20 marginal agricultural labourers, 80 marginal workers in household industries and 2,289 other marginal workers.[3] As per the religious census of 2011, Kattivakkam had 82.04% Hindus, 8.86% Muslims, 8.53% Christians, 0.06% Sikhs, 0.01% Buddhists, 0.02% Jains, 0.46% following other religions and 0.02% following no religion or did not indicate any religious preference.[4]
E.T.P.S. Matriculation School is managed by "Ennore Thermal Power Station" under State government.