| Karanodai | |
| Native Name Lang: | Tamil |
| Settlement Type: | suburb |
| Pushpin Map: | India Chennai#Tamil Nadu#India |
| Pushpin Map Caption: | Location in Chennai, India |
| Coordinates: | 13.2363°N 80.1613°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Thiruvallur District |
| Subdivision Type3: | Metro |
| Subdivision Name3: | Chennai |
| Named For: | Lot of Streams(Odai yin karanamaga vanthathal) |
| Parts Type: | Talukas |
| Parts: | Ponneri Taluk |
| Governing Body: | CMDA |
| Unit Pref: | Metric |
| 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: | 600067 |
| Blank1 Name Sec1: | Planning agency |
| Blank1 Info Sec1: | CMDA |
Karanodai is a northern suburb of Chennai, India located 7 km north of Redhills on GNT Road connecting Chennai with Andhra Pradesh. The town is bounded on north side by Kosasthalaiyar River, also known as Kortalaiyar, which is one of the three rivers that flow in the Chennai metropolitan area. Surrounded by nearby villages like Authur, Sothuperumbedu, Sholavaram, Orakkadu, Nerkundram. Karanodai falls under Madhavaram Constituency in the Tamil Nadu Legislative Assembly, and falls under Thiruvallur Constituency in the Lok Sabha.
Built by the British Engineers this is one of the oldest bridge in the Chennai region which is on Chennai-Kolkata National Highway 5 connecting Chennai and Northern parts of India. Residents of Karanodai recalled the existing facility came up after the 125-year-old Karanodai bridge became dysfunctional fifteen years ago when its three spans were washed away by heavy flows in the river, caused due to the monsoon rains. A few two-wheelers continued to use it until the facility completely collapsed in December 2007.